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

• [x] This PR represents a single feature, fix, or change.
• [x] All applicable changes have been documented.
• [x] 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 :white_check_mark:

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

:exclamation: Your organization needs to install the Codecov GitHub app to enable full functionality.

Additional details and impacted files

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

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.