Adds feature flag for Group Clusters
What does this MR do?
Adds group_clusters
feature flag
Does this MR meet the acceptance criteria?
-
Changelog entry added, if necessary - [-] Documentation created/updated
-
Tests added for this feature/bug -
Conforms to the code review guidelines -
Conforms to the merge request performance guidelines -
Conforms to the style guides - [-] Conforms to the database guides
- [-] Link to e2e tests MR added if this MR has Requires e2e tests label. See the Test Planning Process.
Closes #34758 (closed)