Rector changes and immplementations of required methods

src/Bundle/ChillEventBundle/Controller/AdminController.php

@@ -24,7 +24,7 @@ class AdminController extends AbstractController
      * Event admin.
      */
     #[Route(path: '/{_locale}/admin/event', name: 'chill_event_admin_index')]
-    public function indexAdminAction()
+    public function indexAdminAction(): \Symfony\Component\HttpFoundation\Response
     {
         return $this->render('@ChillEvent/Admin/index.html.twig');
     }