Merge branch 'ck3g-change-sitemap-controller-feature-category' into 'master'

Change Sitemap feature category to not_owned

See merge request gitlab-org/gitlab!68256

ee/app/controllers/sitemap_controller.rb

@@ -3,7 +3,7 @@
 class SitemapController < ApplicationController
   skip_before_action :authenticate_user!
 
-  feature_category :metrics
+  feature_category :not_owned
 
   def show
     return render_404 unless Gitlab.com?