Release sampo-github-action-v0.13.0

[github-actions[bot]]

Minor changes

• 1dcc188 Python packages are now supported! Sampo now automatically detects Python packages managed by pyproject.toml and uv (for publishing to PyPI), and handles versioning, changelogs, and publishing—even in mixed workspaces. — Thanks @rafaeelaudibert for your first contribution 🎉!

Patch changes

• 26aed7e Changelog entries now correctly credit the original changeset author, even if the file was later edited by someone else. — Thanks @goulvenclech!
• 2a403f1 Dry-run mode now skips already-published packages before validation, and no longer pushes tags or creates GitHub releases. — Thanks @goulvenclech!
• Updated dependencies: sampo-core@0.11.0

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See release page: https://github.com/bruits/sampo/releases/tag/sampo-github-action-v0.13.0