Stop using deprecated event classes

src/EventSubscriber/CheckRequirementsSubscriber.php

@@ -17,7 +17,7 @@
 use Symfony\Component\Console\Event\ConsoleErrorEvent;
 use Symfony\Component\Console\Style\SymfonyStyle;
 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
-use Symfony\Component\HttpKernel\Event\GetResponseForExceptionEvent;
+use Symfony\Component\HttpKernel\Event\ExceptionEvent;
 use Symfony\Component\HttpKernel\KernelEvents;
 
 /**
@@ -73,7 +73,7 @@ public function handleConsoleError(ConsoleErrorEvent $event): void
      * This method checks if the triggered exception is related to the database
      * and then, it checks if the required 'sqlite3' PHP extension is enabled.
      */
-    public function handleKernelException(GetResponseForExceptionEvent $event): void
+    public function handleKernelException(ExceptionEvent $event): void
     {
         $exception = $event->getException();
         // Since any exception thrown during a Twig template rendering is wrapped

src/EventSubscriber/CommentNotificationSubscriber.php

@@ -15,7 +15,7 @@
 use App\Events\CommentCreatedEvent;
 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
 use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
-use Symfony\Component\Translation\TranslatorInterface;
+use Symfony\Contracts\Translation\TranslatorInterface;
 
 /**
  * Notifies post's author about new comments.

src/EventSubscriber/ControllerSubscriber.php

@@ -13,7 +13,7 @@
 
 use App\Twig\SourceCodeExtension;
 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
-use Symfony\Component\HttpKernel\Event\FilterControllerEvent;
+use Symfony\Component\HttpKernel\Event\ControllerEvent;
 use Symfony\Component\HttpKernel\KernelEvents;
 
 /**
@@ -39,7 +39,7 @@ public static function getSubscribedEvents(): array
         ];
     }
 
-    public function registerCurrentController(FilterControllerEvent $event): void
+    public function registerCurrentController(ControllerEvent $event): void
     {
         // this check is needed because in Symfony a request can perform any
         // number of sub-requests. See

src/EventSubscriber/RedirectToPreferredLocaleSubscriber.php

@@ -13,7 +13,7 @@
 
 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
 use Symfony\Component\HttpFoundation\RedirectResponse;
-use Symfony\Component\HttpKernel\Event\GetResponseEvent;
+use Symfony\Component\HttpKernel\Event\RequestEvent;
 use Symfony\Component\HttpKernel\KernelEvents;
 use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
 
@@ -60,7 +60,7 @@ public static function getSubscribedEvents(): array
         ];
     }
 
-    public function onKernelRequest(GetResponseEvent $event): void
+    public function onKernelRequest(RequestEvent $event): void
     {
         $request = $event->getRequest();