Merge branch 'sy-move-publish-check' into 'master'

Move publish check to its own method

See merge request gitlab-org/gitlab!31381

ee/app/services/status_page/publish_service.rb

@@ -35,11 +35,11 @@ module StatusPage
     attr_reader :user, :project, :issue_id
 
     def process_details
-      if issue.confidential?
-        unpublish_details
-      else
-        publish_details
+      unpublish_details? ? unpublish_details : publish_details
     end
+
+    def unpublish_details?
+      issue.confidential?
     end
 
     def process_list