Backport parsing trust anchors with unknown critical extensions to 0.103

[djc]

Backports

• Allow parsing trust anchors with unknown critical extensions #465

to the 0.103 branch.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.36%. Comparing base (348ce01) to head (5648380).
⚠️ Report is 2 commits behind head on rel-0.103.

Additional details and impacted files

@@              Coverage Diff              @@
##           rel-0.103     #466      +/-   ##
=============================================
+ Coverage      97.34%   97.36%   +0.02%     
=============================================
  Files             19       19              
  Lines           3761     3792      +31     
=============================================
+ Hits            3661     3692      +31     
  Misses           100      100              

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.