[PR #2339/7dea1807 backport][2.26] [2.27] Require a newer version of pysequoia to fix signature validation

[patchback]

This is a backport of PR #2339 as merged into 2.27 (7dea180).

skopeo standalone-verify creates slightly atypical (but legal) PGP signatures which pysequoia <= 0.1.32 was rejecting (via gpg_verify() from pulpcore).

We need to declare compatibility with the new version

(cherry picked from commit 4b00944)

📜 Checklist

• Commits are cleanly separated with meaningful messages (simple features and bug fixes should be squashed to one commit)
• A changelog entry or entries has been added for any significant changes
• Follows the Pulp policy on AI Usage
• (For new features) - User documentation and test coverage has been added

See: Pull Request Walkthrough