Merge branch...

Merge branch 'quarantine-flaky-tests-ee-spec-lib-ee-gitlab-elastic-helper_spec-rb-222' into 'master' 

Quarantine a flaky test

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/171620



Merged-by: Siddharth Dungarwal <sdungarwal@gitlab.com>
Approved-by: Siddharth Dungarwal <sdungarwal@gitlab.com>
Co-authored-by: Auto-quarantining bot <gitlab-auto-quarantine-bot@gitlab.com>

ee/spec/lib/ee/gitlab/elastic/helper_spec.rb

@@ -220,7 +220,7 @@
       helper.create_migrations_index
     end
 
-    it 'deletes the migrations index' do
+    it 'deletes the migrations index', quarantine: 'https://gitlab.com/gitlab-org/gitlab/-/issues/500960' do
       expect { helper.delete_migrations_index }
         .to change { helper.migrations_index_exists? }
               .from(true).to(false)