Merge branch 'group-change-platform-insights' into 'master'

Update metadata and codeowners for Platform Insights

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/166440



Merged-by: Kati Paizee <kpaizee@gitlab.com>
Approved-by: Diana Logan <dlogan@gitlab.com>
Approved-by: Kati Paizee <kpaizee@gitlab.com>
Co-authored-by: Lorena Ciutacu <lciutacu@gitlab.com>