Merge branch 'ac-fix-16-9-0-changelog' into 'master'

Fix 16.9.0 changelog

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/144756



Merged-by: Mayra Cabrera <mcabrera@gitlab.com>
Approved-by: Mayra Cabrera <mcabrera@gitlab.com>
Co-authored-by: Alessio Caiazza <acaiazza@gitlab.com>