Merge branch 'update-anonymous-visual-review-feedback-feature-flag' into 'master'

Update anonymous feedback feature flag

See merge request gitlab-org/gitlab!43168

ee/config/feature_flags/development/anonymous_visual_review_feedback.yml

 ---
 name: anonymous_visual_review_feedback
-introduced_by_url: 
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/18710
 rollout_issue_url:
-group: 
+group: group::testing
 type: development
 default_enabled: false