Default enable cascading settings feature flag

app/models/concerns/cascading_namespace_setting_attribute.rb

@@ -25,7 +25,7 @@ module CascadingNamespaceSettingAttribute
 
   class_methods do
     def cascading_settings_feature_enabled?
-      ::Feature.enabled?(:cascading_namespace_settings, default_enabled: false)
+      ::Feature.enabled?(:cascading_namespace_settings, default_enabled: true)
     end
 
     private

changelogs/unreleased/dblessing_cascading_settings_default_enabled.yml

+---
+title: Default enable cascading settings feature flag
+merge_request: 59026
+author:
+type: changed

config/feature_flags/development/cascading_namespace_settings.yml

 ---
 name: cascading_namespace_settings
 introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/55678
-rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/321724
+rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/327230
 milestone: '13.11'
 type: development
 group: group::access
-default_enabled: false
+default_enabled: true