Automated Project Update Bot fixes

This merge request was automatically created by the Project Update Bot. It contains the changes from run 11-121090.

src/EventSubscriber/FieldStorageSubscriber.php

@@ -49,7 +49,7 @@ class FieldStorageSubscriber implements EventSubscriberInterface {
   /**
    * {@inheritdoc}
    */
-  public static function getSubscribedEvents() {
+  public static function getSubscribedEvents(): array {
     return [
       FieldStorageDefinitionEvents::DELETE => 'onFieldStorageDeletion',
     ];