Automated Project Update Bot fixes

Relates to #3499032. This merge request was automatically created by the Project Update Bot. It contains the changes from run 11-392907.

src/EventSubscriber/FavoritesEventSubscriber.php

@@ -42,7 +42,7 @@ class FavoritesEventSubscriber implements EventSubscriberInterface {
   /**
    * {@inheritdoc}
    */
-  public static function getSubscribedEvents() {
+  public static function getSubscribedEvents(): array {
     $events = [
       // FavoritesEvents::FAVORITES_ENTITY_ADD => 'displayAddToFavoritesMessage',
       // FavoritesEvents::FAVORITES_ENTITY_REMOVE => 'displayRemoveFromFavoritesMessage',