minor #17661 We need to use AsEntityListener instead of AsDoctrineListener (cedriclombardot)

This PR was submitted for the 6.2 branch but it was squashed and merged into the 6.0 branch instead.

Discussion
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We need to use AsEntityListener instead of AsDoctrineListener

Commits
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d9b62bb We need to use AsEntityListener instead of AsDoctrineListener

Author: javiereguiluz

doctrine/events.rst

@@ -255,7 +255,7 @@ First, define a PHP class that handles the ``postUpdate`` Doctrine event::
         }
     }
 
-Then, add the ``#[AsDoctrineListener]`` attribute to the class to enable it as
+Then, add the ``#[AsEntityListener]`` attribute to the class to enable it as
 a Doctrine entity listener in your application:
 
     .. code-block:: php
@@ -265,9 +265,10 @@ a Doctrine entity listener in your application:
 
         // ...
         use App\Entity\User;
-        use Doctrine\Bundle\DoctrineBundle\Attribute\AsDoctrineListener;
+        use Doctrine\Bundle\DoctrineBundle\Attribute\AsEntityListener;
+        use Doctrine\ORM\Events;
 
-        #[AsDoctrineListener(event: 'postUpdate',  method: 'postUpdate', entity: User::class)]
+        #[AsEntityListener(event: Events::postUpdate, method: 'postUpdate', entity: User::class)]
         class UserChangedNotifier
         {
             // ...