Use X509CertLoader

[mregen]

Proposed changes

use Microsoft.Bcl.Cryptography to support X509CertificateLoader

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 54.86%. Comparing base (65079b0) to head (491332d).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #387      +/-   ##
==========================================
- Coverage   54.87%   54.86%   -0.01%     
==========================================
  Files         346      346              
  Lines       66406    66406              
  Branches    13608    13608              
==========================================
- Hits        36438    36433       -5     
- Misses      25979    25996      +17     
+ Partials     3989     3977      -12     

see 10 files with indirect coverage changes

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[mregen]

@dependabot