Merged PR 19384: [6.0] MSRC 68121 - SFB - ASP.NET Core Client Certificate...

Merged PR 19384: [6.0] MSRC 68121 - SFB - ASP.NET  Core Client Certificate Validation Check Bypasses Revocation Check with Cache

MSRC 68121 - SFB - ASP.NET  Core Client Certificate Validation Check Bypasses Revocation Check with Cache CRM:0331001790

Fixes an issue with certificate validation results being stored indefinitely due to sliding expiration keeping it alive. The fix just adds an absolute expiration of 30 minutes.

Customer Impact:
This issue prevents certificate revocation if the certificate is in use as the certificate would never be rechecked for revocation due to sliding keeping the result in the cache.

Regression:
No

Risk:
Low

Verification
Unit test

Packaging changes reviewed?
TBD: need patchconfig edits?