Merge branch 'group-level-integrations-feature-flag' into 'master'

Feature Flags: Add introduced by url

See merge request gitlab-org/gitlab!42697

config/feature_flags/development/group_level_integrations.yml

 ---
 name: group_level_integrations
-introduced_by_url: 
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/27557
 rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/238575
 group: group::ecosystem
 type: development