fix author

Author: e-spin

src/Resources/contao/languages/en/tl_metamodel_filtersetting.php

@@ -13,6 +13,7 @@
  * @package    MetaModels
  * @subpackage AttributeCheckbox
  * @author     Christian Schiffler <c.schiffler@cyberspectrum.de>
+ * @author     Ingolf Steinhardt <info@e-spin.de>
  * @copyright  2012-2022 The MetaModels team.
  * @license    https://github.com/MetaModels/attribute_checkbox/blob/master/LICENSE LGPL-3.0
  * @filesource