Merge branch 'docs-metadata-update' into 'master'

Docs: Update metadata with Testing group

See merge request gitlab-org/gitlab!43165

doc/user/group/repositories_analytics/index.md

 ---
 type: reference
 stage: Verify
-group: Analytics
+group: Testing
 info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#designated-technical-writers
 ---