apply rector rules

src/Bundle/ChillCustomFieldsBundle/Templating/Twig/CustomFieldRenderingTwig.php

@@ -26,15 +26,12 @@ use Twig\TwigFunction;
  */
 class CustomFieldRenderingTwig extends AbstractExtension implements ContainerAwareInterface
 {
-    /**
-     * @var Container The container
-     */
-    private $container;
+    private ?\Symfony\Component\DependencyInjection\ContainerInterface $container = null;
 
     /**
      * @var array The default parameters
      */
-    private $defaultParams = [
+    private array $defaultParams = [
         'label_layout' => 'ChillCustomFieldsBundle:CustomField:render_label.html.twig',
     ];