Fix decode of empty CRLs

[mregen]

Proposed changes

• A CRL without revokedcertificates and other extensions caused a decoding error
• Add tests to permutate decode without revokedcertificates and extensions
• Fix: Add check for additional data after NextDateTime, skip otherwise

Related Issues

• Fixes CRL with zero revoked certificates fails to be decoded #2595

Types of changes

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• 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

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• I fixed all failing tests in the CI pipelines.
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Further comments

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[mregen]

just a warning fix... no functional impact

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 54.61%. Comparing base (33df292) to head (2b03f35).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2609      +/-   ##
==========================================
- Coverage   54.64%   54.61%   -0.03%     
==========================================
  Files         343      343              
  Lines       65215    65216       +1     
  Branches    13352    13354       +2     
==========================================
- Hits        35639    35620      -19     
- Misses      25697    25711      +14     
- Partials     3879     3885       +6     

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