Fix tests

.github/workflows/unit-tests.yml

@@ -139,7 +139,7 @@ jobs:
         if: "${{ matrix.php == '8.0' && ! matrix.mode }}"
         run: |
           sed -i 's/"\*\*\/Tests\/"//' composer.json
-          composer install --optimize-autoloader
+          composer install -q --optimize-autoloader
           SYMFONY_PATCH_TYPE_DECLARATIONS=force=1 php .github/patch-types.php
           SYMFONY_PATCH_TYPE_DECLARATIONS=force=1 php .github/patch-types.php # ensure the script is idempotent
           echo PHPUNIT="$PHPUNIT,legacy" >> $GITHUB_ENV

src/Symfony/Contracts/Tests/Service/ServiceSubscriberTraitTest.php

@@ -42,7 +42,10 @@ class ParentTestService
     {
     }
 
-    public function setContainer(ContainerInterface $container): ContainerInterface
+    /**
+     * @return ContainerInterface
+     */
+    public function setContainer(ContainerInterface $container)
     {
         return $container;
     }