* fix: silence noisy google_genai.models INFO logging
The google-genai SDK logs "AFC is enabled with max remote calls: 10"
at INFO level on every initialization. Set its logger to WARNING.
* fix: regenerate docs skill in release-integration script
The release script generates changelog/SDK pages but never re-ran
generate-docs-skill.sh, causing CI to fail with out-of-sync skill
files after every integration release. Now it regenerates the skill
and includes the output in the release commit.
Also adds the missing ag2 skill files from the latest release.
1cac35728f