Release prep v2.1.0

[github-actions[bot]]

Automated release-prep through pdk-templates from commit 5623ce763555fa2a3fd6f819be2b1f511f4cfadb. Please verify before merging:

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