Update Symfony components used as dev tools

Author: stof

composer.json

@@ -28,8 +28,8 @@
         "phpstan/phpstan-deprecation-rules": "^2.0",
         "phpunit/phpunit": "^9.5.6",
         "squizlabs/php_codesniffer": "~3.5",
-        "symfony/phpunit-bridge": "^5.1",
-        "symfony/var-dumper": "^6.3"
+        "symfony/phpunit-bridge": "^6.4 || ^7.3 || ^8.0",
+        "symfony/var-dumper": "^6.4 || ^7.3 || ^8.0"
     },
     "extra": {
         "branch-alias": {