minor #18156 Task object instead of id as param (hbgamra)

This PR was submitted for the 6.3 branch but it was merged into the 5.4 branch instead.

Discussion
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Task object instead of id as param

Thanks to Paramconverter we can get Task object  directly instead of putting the $id and we can throw automatically an exception if the task was not found

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Commits
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226f4b9 Task object instead of id as param

Author: javiereguiluz

form/form_collections.rst

@@ -598,12 +598,8 @@ the relationship between the removed ``Tag`` and ``Task`` object.
 
         class TaskController extends AbstractController
         {
-            public function edit($id, Request $request, EntityManagerInterface $entityManager): Response
+            public function edit(Task $task, Request $request, EntityManagerInterface $entityManager): Response
             {
-                if (null === $task = $entityManager->getRepository(Task::class)->find($id)) {
-                    throw $this->createNotFoundException('No task found for id '.$id);
-                }
-
                 $originalTags = new ArrayCollection();
 
                 // Create an ArrayCollection of the current Tag objects in the database