Release prep v7.3.1

[github-actions[bot]]

Automated release-prep through pdk-templates from commit 83b53fe65cb324795405982d0f6e28d1d4b3a3a9. Please verify before merging:

• [x] last nightly run is green
• [ ] Changelog is readable and has no unlabeled pull requests
• [ ] Ensure the changelog version and metadata version match