Ensure Singleton registration for TokenAcquisition Services when TokenAcquirerFactory is null

[sruke]

Why? This PR ensures TokenAcquisition services are registered only as singletons if the isTokenAcquisitionSingleton flag is true and removes any previously added scoped TokenAcquisition services when TokenAcquirerFactory is not used.  

{PR title}

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Summary of the changes (Less than 80 chars)

Description

{Detail}

Fixes #{bug number} (in this specific format)

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Summary

Summary

||| |:---|:---| | Generated on: | 11/28/2024 - 1:49:06 AM | | Coverage date: | 11/28/2024 - 1:47:54 AM - 11/28/2024 - 1:48:55 AM | | Parser: | MultiReport (2x Cobertura) | | Assemblies: | 9 | | Classes: | 160 | | Files: | 167 | | **Line coverage:** | 50.8% (3291 of 6472) | | Covered lines: | 3291 | | Uncovered lines: | 3181 | | Coverable lines: | 6472 | | Total lines: | 20527 | | **Branch coverage:** | 46.4% (1191 of 2564) | | Covered branches: | 1191 | | Total branches: | 2564 | | **Method coverage:** | [Feature is only available for sponsors](https://reportgenerator.io/pro) |

Coverage

Microsoft.Identity.Web - 66.8%

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lerFactory|100%|| |Microsoft.Identity.Web.DownstreamWebApi|10.8%|0%| |Microsoft.Identity.Web.DownstreamWebApiExtensions|100%|| |Microsoft.Identity.Web.DownstreamWebApiGenericExtensions|0%|0%| |Microsoft.Identity.Web.DownstreamWebApiOptions|94.7%|50%| |Microsoft.Identity.Web.Extensions|100%|100%| |Microsoft.Identity.Web.IDownstreamWebApi|0%|| |Microsoft.Identity.Web.IncrementalConsentAndConditionalAccessHelper|95.8%|87.5%| |Microsoft.Identity.Web.MergedOptionsValidation|100%|100%| |Microsoft.Identity.Web.MicrosoftIdentityAppAuthenticationMessageHandler|100%|100%| |Microsoft.Identity.Web.MicrosoftIdentityAppCallsWebApiAuthenticationBuilder
Extension|0%|0%| |Microsoft.Identity.Web.MicrosoftIdentityAuthenticationBaseMessageHandler|96%|62.5%| |Microsoft.Identity.Web.MicrosoftIdentityAuthenticationBaseOptions|100%|50%| |Microsoft.Identity.Web.MicrosoftIdentityAuthenticationMessageHandlerHttpCli
entBuilderExtensions|91.3%|| |Microsoft.Identity.Web.MicrosoftIdentityAuthenticationMessageHandlerOptions|90%|| |Microsoft.Identity.Web.MicrosoftIdentityBlazorServiceCollectionExtensions|100%|| |Microsoft.Identity.Web.MicrosoftIdentityConsentAndConditionalAccessHandler|4.9%|0%| |Microsoft.Identity.Web.MicrosoftIdentityServiceHandler|0%|| |Microsoft.Identity.Web.MicrosoftIdentityUserAuthenticationMessageHandler|100%|66.6%| |Microsoft.Identity.Web.MicrosoftIdentityWebApiAuthenticationBuilder|100%|50%| |Microsoft.Identity.Web.MicrosoftIdentityWebApiAuthenticationBuilderExtensio
ns|95.5%|88.8%| |Microsoft.Identity.Web.MicrosoftIdentityWebApiAuthenticationBuilderWithConf
iguration|100%|| |Microsoft.Identity.Web.MicrosoftIdentityWebApiServiceCollectionExtensions|100%|| |Microsoft.Identity.Web.MicrosoftIdentityWebAppAuthenticationBuilder|94.6%|83.3%| |Microsoft.Identity.Web.MicrosoftIdentityWebAppAuthenticationBuilderExtensio
ns|96.8%|87.8%| |Microsoft.Identity.Web.MicrosoftIdentityWebAppAuthenticationBuilderWithConf
iguration|81.2%|| |Microsoft.Identity.Web.MicrosoftIdentityWebAppServiceCollectionExtensions|100%|| |Microsoft.Identity.Web.PolicyBuilderExtensions|100%|| |Microsoft.Identity.Web.RequiredScopeExtensions|40%|| |Microsoft.Identity.Web.RequiredScopeOrAppPermissionExtensions|33.3%|| |Microsoft.Identity.Web.RequireScopeOptions|100%|50%| |Microsoft.Identity.Web.RequireScopeOrAppPermissionOptions|100%|50%| |Microsoft.Identity.Web.Resource.JwtBearerMiddlewareDiagnostics|100%|100%| |Microsoft.Identity.Web.Resource.MicrosoftIdentityIssuerValidatorFactory|90%|62.5%| |Microsoft.Identity.Web.Resource.OpenIdConnectMiddlewareDiagnostics|100%|83.3%| |Microsoft.Identity.Web.Resource.RegisterValidAudience|95.6%|90%| |Microsoft.Identity.Web.Resource.RequiredScopeAttribute|0%|| |Microsoft.Identity.Web.Resource.RequiredScopeOrAppPermissionAttribute|0%|| |Microsoft.Identity.Web.Resource.RolesRequiredHttpContextExtensions|100%|100%| |Microsoft.Identity.Web.Resource.ScopesRequiredHttpContextExtensions|100%|100%| |Microsoft.Identity.Web.ScopeAuthorizationHandler|90.3%|73%| |Microsoft.Identity.Web.ScopeAuthorizationRequirement|100%|50%| |Microsoft.Identity.Web.ScopeOrAppPermissionAuthorizationHandler|90.2%|72.9%| |Microsoft.Identity.Web.ScopeOrAppPermissionAuthorizationRequirement|78.9%|60%| |Microsoft.Identity.Web.TempDataLoginErrorAccessor|15%|25%| |Microsoft.Identity.Web.TokenAcquisitionAppTokenCredential|0%|| |Microsoft.Identity.Web.TokenAcquisitionTokenCredential|0%|| |Microsoft.Identity.Web.TokenCacheProviders.Session.MsalSessionTokenCachePro
vider|0%|0%| |Microsoft.Identity.Web.TokenCacheProviders.Session.SessionTokenCacheProvide
rExtension|0%|0%|

Microsoft.Identity.Web.Certificate - 42.3%

|**Name**|**Line**|**Branch**| |:---|---:|---:| |**Microsoft.Identity.Web.Certificate**|**42.3%**|**26.5%**| |Microsoft.Identity.Web.Base64EncodedCertificateLoader|90.9%|66.6%| |Microsoft.Identity.Web.CertificateDescription|87.9%|| |Microsoft.Identity.Web.CertificateLoaderHelper|29.1%|20%| |Microsoft.Identity.Web.DefaultCertificateLoader|50%|31.8%| |Microsoft.Identity.Web.DefaultCredentialsLoader|54.7%|50%| |Microsoft.Identity.Web.FromPathCertificateLoader|0%|| |Microsoft.Identity.Web.KeyVaultCertificateLoader|1.6%|0%| |Microsoft.Identity.Web.SignedAssertionFilePathCredentialsLoader|93.7%|100%| |Microsoft.Identity.Web.SignedAssertionFromManagedIdentityCredentialLoader|15.7%|0%| |Microsoft.Identity.Web.StoreWithDistinguishedNameCertificateLoader|0%|| |Microsoft.Identity.Web.StoreWithThumbprintCertificateLoader|0%||

Microsoft.Identity.Web.Certificateless - 40.1%

|**Name**|**Line**|**Branch**| |:---|---:|---:| |**Microsoft.Identity.Web.Certificateless**|**40.1%**|**43.2%**| |Microsoft.Identity.Web.AzureIdentityForKubernetesClientAssertion|58.1%|63.1%| |Microsoft.Identity.Web.CertificatelessOptions|100%|| |Microsoft.Identity.Web.ClientAssertion|100%|| |Microsoft.Identity.Web.ClientAssertionProviderBase|100%|80%| |Microsoft.Identity.Web.ManagedIdentityClientAssertion|0%|0%|

Microsoft.Identity.Web.Diagnostics - 10.2%

|**Name**|**Line**|**Branch**| |:---|---:|---:| |**Microsoft.Identity.Web.Diagnostics**|**10.2%**|**7.1%**| |Microsoft.Identity.Web.Diagnostics.OsHelper|33.3%|| |Microsoft.Identity.Web.Throws|8.6%|7.1%|

Microsoft.Identity.Web.DownstreamApi - 12%

|**Name**|**Line**|**Branch**| |:---|---:|---:| |**Microsoft.Identity.Web.DownstreamApi**|**12%**|**10.8%**| |Microsoft.Extensions.Configuration.Binder.SourceGeneration|0%|0%| |Microsoft.Extensions.Configuration.Binder.SourceGeneration|0%|0%| |Microsoft.Identity.Web.DownstreamApi|15.4%|21.6%| |Microsoft.Identity.Web.DownstreamApiExtensions|51.4%|80%| |Microsoft.Identity.Web.DownstreamApiLoggingEventId|100%|| |System.Runtime.CompilerServices|0%|| |System.Runtime.CompilerServices|0%||

Microsoft.Identity.Web.MicrosoftGraph - 42%

|**Name**|**Line**|**Branch**| |:---|---:|---:| |**Microsoft.Identity.Web.MicrosoftGraph**|**42%**|**4.5%**| |Microsoft.Identity.Web.BaseRequestExtensions|0%|0%| |Microsoft.Identity.Web.GraphServiceCollectionExtensions|82.7%|50%| |Microsoft.Identity.Web.MicrosoftGraphExtensions|67.7%|| |Microsoft.Identity.Web.MicrosoftGraphOptions|100%|| |Microsoft.Identity.Web.TokenAcquisitionAuthenticationProvider|13.5%|0%| |Microsoft.Identity.Web.TokenAcquisitionAuthenticationProviderOption|16.6%||

Microsoft.Identity.Web.Test.Common - 70.9%

|**Name**|**Line**|**Branch**| |:---|---:|---:| |**Microsoft.Identity.Web.Test.Common**|**70.9%**|**66.6%**| |Microsoft.Identity.Web.Test.Common.Asserts|100%|| |Microsoft.Identity.Web.Test.Common.Mocks.LoggerMock`1|50%|100%| |Microsoft.Identity.Web.Test.Common.Mocks.MockHttpClientFactory|100%|33.3%| |Microsoft.Identity.Web.Test.Common.Mocks.MockHttpContextAccessor|100%|| |Microsoft.Identity.Web.Test.Common.Mocks.MockHttpCreator|68.9%|| |Microsoft.Identity.Web.Test.Common.Mocks.MockHttpMessageHandler|80.4%|81.2%| |Microsoft.Identity.Web.Test.Common.Mocks.QueryStringParser|86.8%|85.7%| |Microsoft.Identity.Web.Test.Common.Mocks.QueueHttpMessageHandler|57.1%|37.5%| |Microsoft.Identity.Web.Test.Common.TestConstants|100%|| |Microsoft.Identity.Web.Test.Common.TestHelpers.ExternalApp|0%|0%| |Microsoft.Identity.Web.Test.Common.TestHelpers.HttpContextUtilities|100%|| |Microsoft.Identity.Web.Test.Common.TestHelpers.InMemoryTokenCache|0%|0%| |Microsoft.Identity.Web.Test.Common.TestHelpers.MsalTestTokenCacheProvider|26.6%|| |Microsoft.Identity.Web.Test.Common.TestHelpers.TestMsalDistributedTokenCach
eAdapter|100%|| |Microsoft.Identity.Web.Test.Common.TestHelpers.TestOptionsMonitor`1|50%|0%|

Microsoft.Identity.Web.TokenAcquisition - 53.1%

|**Name**|**Line**|**Branch**| |:---|---:|---:| |**Microsoft.Identity.Web.TokenAcquisition**|**53.1%**|**55.9%**| |Microsoft.Identity.Web.ApplicationBuilderExtensions|0%|| |Microsoft.Identity.Web.AuthCodeRedemptionParameters|100%|| |Microsoft.Identity.Web.CiamAuthorityHelper|100%|92.8%| |Microsoft.Identity.Web.ClientInfo|100%|87.5%| |Microsoft.Identity.Web.ConfidentialClientApplicationBuilderExtension|79%|60.5%| |Microsoft.Identity.Web.ConfidentialClientApplicationOptionsMerger|100%|50%| |Microsoft.Identity.Web.DefaultAuthorizationHeaderProvider|54.9%|26.6%| |Microsoft.Identity.Web.DefaultTokenAcquirerFactoryImplementation|1.6%|0%| |Microsoft.Identity.Web.Experimental.CertificateChangeEventArg|0%|| |Microsoft.Identity.Web.Extensibility.BaseAuthorizationHeaderProvider|45.4%|| |Microsoft.Identity.Web.Hosts.DefaultTokenAcquisitionHost|38.4%|0%| |Microsoft.Identity.Web.HttpContextExtensions|100%|| |Microsoft.Identity.Web.IdHelper|95.8%|50%| |Microsoft.Identity.Web.Internal.WebApiBuilders|100%|100%| |Microsoft.Identity.Web.ITokenAcquisition|0%|| |Microsoft.Identity.Web.JwtBearerOptionsMerger|0%|0%| |Microsoft.Identity.Web.LoggingEventId|100%|| |Microsoft.Identity.Web.LoggingOptions|100%|| |Microsoft.Identity.Web.MergedOptions|93.1%|91.8%| |Microsoft.Identity.Web.MergedOptionsStore|100%|| |Microsoft.Identity.Web.MicrosoftIdentityAppCallsWebApiAuthenticationBuilder|83.3%|100%| |Microsoft.Identity.Web.MicrosoftIdentityApplicationOptionsMerger|60%|0%| |Microsoft.Identity.Web.MicrosoftIdentityBaseAuthenticationBuilder|85.1%|78.5%| |Microsoft.Identity.Web.MicrosoftIdentityOptions|100%|75%| |Microsoft.Identity.Web.MicrosoftIdentityOptionsMerger|100%|50%| |Microsoft.Identity.Web.MicrosoftIdentityWebChallengeUserException|0%|| |Microsoft.Identity.Web.MsalAspNetCoreHttpClientFactory|50%|| |Microsoft.Identity.Web.MsAuth10AtPop|100%|100%| |Microsoft.Identity.Web.PrincipalExtensionsForSecurityTokens|100%|70%| |Microsoft.Identity.Web.ServiceCollectionExtensions|93.8%|92.8%| |Microsoft.Identity.Web.TokenAcquirer|0%|0%| |Microsoft.Identity.Web.TokenAcquirerFactory|55.4%|50%| |Microsoft.Identity.Web.TokenAcquisition|22.4%|20.2%| |Microsoft.Identity.Web.TokenAcquisitionAspNetCore|4.6%|0%| |Microsoft.Identity.Web.TokenAcquisitionAspnetCoreHost|40.4%|23.6%| |Microsoft.Identity.Web.TokenAcquisitionExtensionOptions|100%|75%| |Microsoft.Identity.Web.TokenAcquisitionOptions|100%|| |Microsoft.Identity.Web.Util.Base64UrlHelpers|93.4%|81.4%|

Microsoft.Identity.Web.TokenCache - 80.8%

|**Name**|**Line**|**Branch**| |:---|---:|---:| |**Microsoft.Identity.Web.TokenCache**|**80.8%**|**82.6%**| |Microsoft.Identity.Web.ClaimsPrincipalExtensions|96.7%|100%| |Microsoft.Identity.Web.LoggingEventId|100%|| |Microsoft.Identity.Web.TokenCacheExtensions|100%|| |Microsoft.Identity.Web.TokenCacheProviders.CacheSerializerHints|100%|| |Microsoft.Identity.Web.TokenCacheProviders.Distributed.DistributedTokenCach
eAdapterExtension|100%|| |Microsoft.Identity.Web.TokenCacheProviders.Distributed.MsalDistributedToken
CacheAdapter|83%|83.3%| |Microsoft.Identity.Web.TokenCacheProviders.Distributed.MsalDistributedToken
CacheAdapterOptions|88.8%|| |Microsoft.Identity.Web.TokenCacheProviders.InMemory.InMemoryTokenCacheProvi
derExtension|100%|| |Microsoft.Identity.Web.TokenCacheProviders.InMemory.MsalMemoryTokenCacheOpt
ions|100%|| |Microsoft.Identity.Web.TokenCacheProviders.InMemory.MsalMemoryTokenCachePro
vider|83.8%|81.8%| |Microsoft.Identity.Web.TokenCacheProviders.MeasureDurationResult|100%|| |Microsoft.Identity.Web.TokenCacheProviders.MeasureDurationResult`1|0%|| |Microsoft.Identity.Web.TokenCacheProviders.MsalAbstractTokenCacheProvider|50.7%|66.6%| |Microsoft.Identity.Web.TokenCacheProviders.Utility|54.5%||