hotfix/fix_deprecations

Author: zonky2

src/ContaoManager/Plugin.php

@@ -3,7 +3,7 @@
 /**
  * This file is part of MetaModels/attribute_checkbox.
  *
- * (c) 2012-2019 The MetaModels team.
+ * (c) 2012-2024 The MetaModels team.
  *
  * For the full copyright and license information, please view the LICENSE
  * file that was distributed with this source code.
@@ -12,7 +12,8 @@
  *
  * @package    MetaModels/attribute_checkbox
  * @author     David Molineus <david.molineus@netzmacht.de>
- * @copyright  2012-2019 The MetaModels team.
+ * @author     Ingolf Steinhardt <info@e-spin.de>
+ * @copyright  2012-2024 The MetaModels team.
  * @license    https://github.com/MetaModels/attribute_checkbox/blob/master/LICENSE LGPL-3.0-or-later
  * @filesource
  */
@@ -33,7 +34,7 @@ class Plugin implements BundlePluginInterface
     /**
      * {@inheritdoc}
      */
-    public function getBundles(ParserInterface $parser)
+    public function getBundles(ParserInterface $parser): array
     {
         return [
             BundleConfig::create(MetaModelsAttributeCheckboxBundle::class)