Update c2patool

[mauricefisher64]

Changes in this pull request

Bring forward c2pa-rs fixes for:

• Merkle trees with empty proofs
• support for missing metadata for Claims object
• OCSP fixes

Checklist

• This PR represents a single feature, fix, or change.
• All applicable changes have been documented.
• Any TO DO items (or similar) have been entered as GitHub issues and the link to that issue has been included in a comment.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 48.68%. Comparing base (3d49271) to head (a7bce2b).

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Additional details and impacted files

@@           Coverage Diff           @@
##             main     #190   +/-   ##
=======================================
  Coverage   48.68%   48.68%           
=======================================
  Files           4        4           
  Lines         684      684           
=======================================
  Hits          333      333           
  Misses        351      351           

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