Automated Project Update Bot fixes

Relates to #3451115. This merge request was automatically created by the Project Update Bot. It contains the changes from run 11-244074.

src/EventSubscriber/CoreSchemaSubrequestSubscriber.php

@@ -91,7 +91,7 @@ class CoreSchemaSubrequestSubscriber implements EventSubscriberInterface {
   /**
    * {@inheritdoc}
    */
-  public static function getSubscribedEvents() {
+  public static function getSubscribedEvents(): array {
     return [
       KernelEvents::REQUEST => ['onKernelRequest', 28],
       KernelEvents::RESPONSE => 'onKernelResponse',