Issue #3297809: Automated Drupal 10 compatibility fixes

src/EventSubscriber/PanelsEverywherePageDisplayVariantSubscriber.php

@@ -152,7 +152,7 @@ class PanelsEverywherePageDisplayVariantSubscriber implements EventSubscriberInt
   /**
    * {@inheritdoc}
    */
-  static function getSubscribedEvents() {
+  static function getSubscribedEvents(): array {
     $events[RenderEvents::SELECT_PAGE_DISPLAY_VARIANT][] = ['onSelectPageDisplayVariant'];
     return $events;
   }