[TASK] Drop symfony 4.4 support

Author: o-ba

composer.json

@@ -27,8 +27,8 @@
         "symfony/mime": "^5.4 || ^6.4 || ^7.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "^8.5.36",
-        "typo3/coding-standards": "^0.6.1"
+        "phpunit/phpunit": "^8.5.36 || ^9.6.16",
+        "typo3/coding-standards": "dev-main"
     },
     "bin": [
         "bin/tailor"