[14.5] Upgrade to Symfony 6 (#4394)

Author: grossmannmartin

composer.json

@@ -24,7 +24,7 @@
         "phpstan/phpstan": "^1.6.8",
         "slevomat/coding-standard": "~8.15.0",
         "squizlabs/php_codesniffer": "^3.6.2",
-        "symfony/finder": "^5.4",
+        "symfony/finder": "^6.4",
         "symplify/easy-coding-standard": "^12.2.0"
     },
     "require-dev": {