Release prep v7.0.0

[github-actions[bot]]

Automated release-prep through pdk-templates from commit 66ddf2c70f7ec2728a3909fb43589506aadb2f16. Please verify before merging:

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