[TOOLS] Run CS-fixer on all files

plugins/ActivityPub/Util/ModelValidator.php

@@ -1,6 +1,6 @@
 <?php
 
-declare(strict_types=1);
+declare(strict_types = 1);
 
 // {{{ License
 // This file is part of GNU social - https://www.gnu.org/software/social
@@ -24,6 +24,7 @@ declare(strict_types=1);
  *
  * @package   GNUsocial
  * @category  ActivityPub
+ *
  * @author    Diogo Peralta Cordeiro <@diogo.site>
  * @copyright 2021 Free Software Foundation, Inc http://www.fsf.org
  * @license   https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later