Update dependency matthiasnoback/symfony-dependency-injection-test to v6

Author: renovate[bot]

vendor-bin/tools/composer.json

@@ -5,7 +5,7 @@
     "require-dev": {
         "friendsofphp/php-cs-fixer": "^3.16",
         "maglnet/composer-require-checker": "^4.6",
-        "matthiasnoback/symfony-dependency-injection-test": "^5.0",
+        "matthiasnoback/symfony-dependency-injection-test": "^6.0",
         "phpmd/phpmd": "^2.13",
         "phpstan/extension-installer": "^1.3",
         "phpstan/phpstan": "^2.0.0",