[dadrus]

HTTP Message Signatures is designed to be profiled. Profiles such as WIMSE and Web Bot Auth introduce additional requirements, including potentially new signature parameters beyond those defined by RFC 9421.

This PR changes the parsing of signature parameters to accept and preserve unknown parameters instead of rejecting them. As before this change, only the parameters defined by RFC 9421 are interpreted and validated by the library.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 94.47%. Comparing base (c835955) to head (84335ac).
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #156      +/-   ##
==========================================
- Coverage   94.48%   94.47%   -0.01%     
==========================================
  Files          18       18              
  Lines        1323     1322       -1     
==========================================
- Hits         1250     1249       -1     
  Misses         37       37              
  Partials       36       36              

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