[Security] Fix role to detect logged-in user

Author: devojifr

security.rst

@@ -2654,7 +2654,7 @@ Secondly, you can use the special "attribute" ``IS_AUTHENTICATED_FULLY`` in plac
 
     public function adminDashboard(): Response
     {
-        $this->denyAccessUnlessGranted('IS_AUTHENTICATED');
+        $this->denyAccessUnlessGranted('IS_AUTHENTICATED_FULLY');
 
         // ...
     }