Allow Symfony 7 (#639)

Fixes #638

Author: mglaman

composer.json

@@ -11,10 +11,10 @@
     ],
     "require": {
         "php": "^7.4 || ^8.0",
-        "symfony/finder": "^4.2 || ^5.0 || ^6.0",
+        "symfony/finder": "^4.2 || ^5.0 || ^6.0 || ^7.0",
         "phpstan/phpstan": "^1.10.1",
         "phpstan/phpstan-deprecation-rules": "^1.1.4",
-        "symfony/yaml": "^4.2|| ^5.0 || ^6.0",
+        "symfony/yaml": "^4.2|| ^5.0 || ^6.0 || ^7.0",
         "webflo/drupal-finder": "^1.2"
     },
     "require-dev": {
@@ -27,7 +27,7 @@
         "phpunit/phpunit": "^8.5 || ^9",
         "slevomat/coding-standard": "^7.1",
         "squizlabs/php_codesniffer": "^3.3",
-        "symfony/phpunit-bridge": "^4.4 || ^5.4 || ^6.0"
+        "symfony/phpunit-bridge": "^4.4 || ^5.4 || ^6.0 || ^7.0"
     },
     "minimum-stability": "dev",
     "prefer-stable": true,