Enable usage data FF unique_users_pushing_mr_ciconfigfile of PA

Full name:
usage_data_o_pipeline_authoring_unique_users_pushing_mr_ciconfigfile

config/feature_flags/development/usage_data_o_pipeline_authoring_unique_users_pushing_mr_ciconfigfile.yml

@@ -5,4 +5,4 @@ rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/322166
 milestone: '13.10'
 type: development
 group: group::pipeline authoring
-default_enabled: false
+default_enabled: true