[Server] Allow Subject Name Change of Application Certificate in GDS Push scenario

[romanett]

Proposed changes

Extend CertificateIdentifier to allow Certificate to be found by applicationUri in addition to the subject name.
This allows an Administator to perform a certificate update and changing the subject name specified in the application certificate during the process

Related Issues

• Fixes #

Types of changes

• 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

• 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.

Further comments

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 0.00%. Comparing base (62b4f05) to head (0f9209d).
Report is 2 commits behind head on master.

Additional details and impacted files

@@      Coverage Diff       @@
##   master   #2833   +/-   ##
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[romanett]

Confirmed working with #2861 merged