Merge branch '5.4' into 6.0

* 5.4:
  Update CI to php 8.1
  Update service_container.rst

Author: javiereguiluz

.github/workflows/ci.yaml

@@ -23,7 +23,7 @@ jobs:
             -   name: "Set-up PHP"
                 uses: shivammathur/setup-php@v2
                 with:
-                    php-version: 8.0
+                    php-version: 8.1
                     coverage: none
                     tools: "composer:v2"
 
@@ -91,7 +91,7 @@ jobs:
           - name: Set-up PHP
             uses: shivammathur/setup-php@v2
             with:
-                php-version: 8.0
+                php-version: 8.1
                 coverage: none
 
           - name: Fetch branch from where the PR started

service_container.rst

@@ -32,10 +32,11 @@ service's class or interface name. Want to :doc:`log </logging>` something? No p
     namespace App\Controller;
 
     use Psr\Log\LoggerInterface;
+    use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
     use Symfony\Component\HttpFoundation\Response;
     use Symfony\Component\Routing\Annotation\Route;
 
-    class ProductController
+    class ProductController extends AbstractController
     {
         /**
          * @Route("/products")