Merge branch 'feature/gb/enable-ci-persisted-stages-by-default' into 'master'

Enable persisted pipeline stages by default

Closes #57610

See merge request gitlab-org/gitlab-ce!25347

app/models/ci/pipeline.rb

@@ -315,7 +315,7 @@ module Ci
     def ordered_stages
       return legacy_stages unless complete?
 
-      if Feature.enabled?('ci_pipeline_persisted_stages')
+      if Feature.enabled?('ci_pipeline_persisted_stages', default_enabled: true)
         stages
       else
         legacy_stages

changelogs/unreleased/feature-gb-enable-ci-persisted-stages-by-default.yml

+---
+title: Enable persisted pipeline stages by default
+merge_request: 25347
+author:
+type: performance