Merge branch 'id-enabled-load-balancing-for-update-all-mirrors' into 'master'

Enable load balancing for update all mirrors by default

See merge request gitlab-org/gitlab!75335

config/feature_flags/development/load_balancing_for_update_all_mirrors_worker.yml

@@ -5,4 +5,4 @@ rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/334162
 milestone: '14.1'
 type: development
 group: group::source code
-default_enabled: false
+default_enabled: true