Abandon PolyglotListener as EventSubscriber

Doctrine Lifecycle Subscribers have been [abandoned in Symfony 6.4](https://symfony.com/doc/6.4/doctrine/events.html#doctrine-lifecycle-subscribers), which is why we can't use this technique anymore. Instead we revert changes from fe96e07 and declare Lifecycle Listeners.

Author: relthyg

src/Doctrine/PolyglotListener.php

@@ -9,7 +9,6 @@
 
 namespace Webfactory\Bundle\PolyglotBundle\Doctrine;
 
-use Doctrine\Common\EventSubscriber;
 use Doctrine\ORM\EntityManager;
 use Doctrine\ORM\Event\PostFlushEventArgs;
 use Doctrine\ORM\Event\PreFlushEventArgs;
@@ -20,7 +19,7 @@
 use WeakReference;
 use Webfactory\Bundle\PolyglotBundle\Locale\DefaultLocaleProvider;
 
-final class PolyglotListener implements EventSubscriber
+final class PolyglotListener
 {
     private const CACHE_SALT = '$WebfactoryPolyglot';
 
@@ -56,16 +55,6 @@ public function __construct(
     ) {
     }
 
-    public function getSubscribedEvents(): array
-    {
-        return [
-            'prePersist',
-            'postLoad',
-            'preFlush',
-            'postFlush',
-        ];
-    }
-
     public function postLoad(LifecycleEventArgs $event): void
     {
         // Called when the entity has been hydrated

src/Resources/config/services.xml

@@ -7,7 +7,10 @@
         <defaults autowire="true" autoconfigure="true" />
 
         <service id="Webfactory\Bundle\PolyglotBundle\Doctrine\PolyglotListener">
-            <tag name="doctrine.event_subscriber" priority="-100" />
+            <tag name="doctrine.event_listener" priority="-100" event="postFlush"/>
+            <tag name="doctrine.event_listener" priority="-100" event="prePersist"/>
+            <tag name="doctrine.event_listener" priority="-100" event="preFlush"/>
+            <tag name="doctrine.event_listener" priority="-100" event="postLoad"/>
             <tag name="monolog.logger" channel="webfactory_polyglot_bundle"/>
         </service>