Enable FF usage_data_unique_users_committing_ciconfigfile by default

changelogs/unreleased/299403-usage_data_unique_users_committing_ciconfigfile.yml

+---
+title: Add tracking to measure the number of unique users committing CI config
+merge_request: 54192
+author:
+type: other

config/feature_flags/development/usage_data_unique_users_committing_ciconfigfile.yml

@@ -5,4 +5,4 @@ rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/299403
 milestone: '13.9'
 type: development
 group: group::pipeline authoring
-default_enabled: false
+default_enabled: true