Issue #3433406 by project update bot, batigolix: Automated Drupal 11...

Issue #3433406 by project update bot, batigolix: Automated Drupal 11 compatibility fixes for migrate_devel

src/EventSubscriber/MigrationEventSubscriber.php

@@ -92,7 +92,7 @@ class MigrationEventSubscriber implements EventSubscriberInterface {
   /**
    * {@inheritdoc}
    */
-  public static function getSubscribedEvents() {
+  public static function getSubscribedEvents(): array {
     $events[MigrateEvents::PRE_ROW_SAVE][] = ['debugRowPreSave'];
     $events[MigrateEvents::POST_ROW_SAVE][] = ['debugRowPostSave'];
     return $events;