[Server] Fix: Return full CertificateChain after Certificate Update

[romanett]

Proposed changes

Fix the CertificateTypesProvider to also return the correct chain after a CertificateUpdate occured.

Related Issues

• Fixes #

Types of changes

• [x] Bugfix (non-breaking change which fixes an issue)
• [ ] Enhancement (non-breaking change which adds functionality)
• [ ] Test enhancement (non-breaking change to increase test coverage)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected, requires version increase of Nuget packages)
• [ ] Documentation Update (if none of the other choices apply)

Checklist

• [x] I have read the CONTRIBUTING doc.
• [ ] I have signed the CLA.
• [ ] I ran tests locally with my changes, all passed.
• [ ] I fixed all failing tests in the CI pipelines.
• [ ] I fixed all introduced issues with CodeQL and LGTM.
• [ ] I have added tests that prove my fix is effective or that my feature works and increased code coverage.
• [ ] I have added necessary documentation (if appropriate).
• [ ] Any dependent changes have been merged and published in downstream modules.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 78.04878% with 9 lines in your changes missing coverage. Please review.

Project coverage is 55.30%. Comparing base (ce33d63) to head (bef4079). Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
.../Security/Certificates/CertificateTypesProvider.cs	78.57%	1 Missing and 2 partials :warning:
...a.Server/Configuration/ConfigurationNodeManager.cs	81.81%	2 Missing :warning:
...ndings.Https/Stack/Https/HttpsTransportListener.cs	0.00%	2 Missing :warning:
Stack/Opc.Ua.Core/Stack/Server/ServerBase.cs	85.71%	0 Missing and 1 partial :warning:
....Ua.Core/Stack/Tcp/UaSCBinaryChannel.Asymmetric.cs	50.00%	0 Missing and 1 partial :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #2855 +/- ## ========================================== - Coverage 55.70% 55.30% -0.41% ========================================== Files 352 352 Lines 67332 67342 +10 Branches 13806 13805 -1 ========================================== - Hits 37506 37241 -265 - Misses 25792 26019 +227 - Partials 4034 4082 +48 ```

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