Fixes a hard-coded namespace in the EmptySecurityController template used by make:auth

Author: dkurth

src/Resources/skeleton/authenticator/EmptySecurityController.tpl.php

@@ -1,6 +1,6 @@
 <?= "<?php\n" ?>
 
-namespace App\Controller;
+namespace <?= $namespace ?>;
 
 use Symfony\Bundle\FrameworkBundle\Controller\<?= $parent_class_name; ?>;
 use Symfony\Component\Routing\Annotation\Route;