feat(credential-providers): source accountId from credential providers

Issue

Internal JS-4633 Part 1

Description

Sources accountId from credential providers.

[x] STS


PASS  test/defaultRoleAssumers.spec.ts
getDefaultRoleAssumer
✓ should use supplied source credentials (59 ms)
✓ should return accountId in the credentials (7 ms)
✓ should use the STS client config (64 ms)
✓ should use the parent client config (13 ms)
✓ should use the STS client middleware (5 ms)
getDefaultRoleAssumerWithWebIdentity
✓ should use the STS client config (18 ms)
✓ should return accountId in the credentials (4 ms)
✓ should use the STS client middleware (6 ms)

Test Suites: 1 passed, 1 total Tests: 8 passed, 8 total Snapshots: 0 total Time: 2.76 s, estimated 4 s Ran all test suites. Done in 3.48s.

- [x] SSO
```console
 PASS  src/isSsoProfile.spec.ts (5.651 s)
 PASS  src/validateSsoProfile.spec.ts (5.806 s)
 PASS  src/fromSSO.spec.ts (5.911 s)
 PASS  src/resolveSSOCredentials.spec.ts (6.007 s)

Test Suites: 4 passed, 4 total
Tests:       33 passed, 33 total
Snapshots:   0 total
Time:        6.34 s, estimated 7 s
Ran all test suites.
Done in 7.00s.

[x] Static


PASS  src/resolveStaticCredentials.spec.ts (7.818 s)
PASS  src/resolveWebIdentityCredentials.spec.ts (8.174 s)
PASS  src/fromIni.spec.ts (8.452 s)
PASS  src/resolveProfileData.spec.ts (8.562 s)
PASS  src/resolveProcessCredentials.spec.ts (8.556 s)
PASS  src/resolveSsoCredentials.spec.ts
PASS  src/resolveCredentialSource.spec.ts (8.633 s)
PASS  src/resolveAssumeRoleCredentials.spec.ts (8.761 s)

Test Suites: 8 passed, 8 total Tests: 91 passed, 91 total Snapshots: 0 total Time: 9.109 s, estimated 10 s Ran all test suites. Done in 9.63s.

- [x] Process 
```console
 PASS  src/getValidatedProcessCredentials.spec.ts
 PASS  src/resolveProcessCredentials.spec.ts
 PASS  src/fromProcess.spec.ts

Test Suites: 3 passed, 3 total
Tests:       17 passed, 17 total
Snapshots:   0 total
Time:        4.939 s, estimated 5 s
Ran all test suites.
Done in 5.44s.

[x] Env


PASS  src/fromEnv.spec.ts
fromEnv
✓ should read credentials from known environment variables (4 ms)
✓ can create credentials without a session token, accountId, or expiration (1 ms)
✓ should include accountId when it is provided in environment variables (1 ms)
✓ should not include accountId when it is not provided in environment variables (1 ms)
✓ throws if env['AWS_ACCESS_KEY_ID'] is not found (1 ms)
✓ throws if env['AWS_SECRET_ACCESS_KEY'] is not found

Test Suites: 1 passed, 1 total Tests: 6 passed, 6 total Snapshots: 0 total Time: 3.716 s Ran all test suites. Done in 4.33s.

- [x] Container (PR: https://github.com/smithy-lang/smithy-typescript/pull/1247)
```console
 PASS  packages/credential-provider-imds/src/remoteProvider/ImdsCredentials.spec.ts
  isImdsCredentials
    ✓ should accept valid ImdsCredentials objects (1 ms)
    ✓ should reject credentials without an AccessKeyId
    ✓ should reject credentials without a SecretAccessKey
    ✓ should reject credentials without a Token
    ✓ should reject credentials without an Expiration
    ✓ should reject scalar values
  fromImdsCredentials
    ✓ should convert IMDS credentials to a credentials object (1 ms)
    ✓ should convert IMDS credentials to a credentials object without accountId when it's not provided (1 ms)

Test Suites: 1 passed, 1 total
Tests:       8 passed, 8 total
Snapshots:   0 total
Time:        3.257 s, estimated 4 s

PR to update AwsCredentialIdentity interface: https://github.com/smithy-lang/smithy-typescript/pull/1240

Testing

To-Do:

[x] merge AwsCredentialIdentity interface PR above
[x] run (updated) unit tests following above merge for all the credential providers that were modified.
[x] run codegen for sts-defaultRoleAssumers since it copies these files to the client
[x] copy .spec.ts for client-sts from codegen dir manually (test file isn't being copied properly)

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aws / aws-sdk-js-v3