Allow Symfony ^7.0 as dependency

Author: Kennard Vermeiren

.gitignore

@@ -2,3 +2,4 @@
 /.idea
 /.Log
 composer.lock
+.phpunit.result.cache

composer.json

@@ -31,12 +31,12 @@
         "ext-json": "*",
         "ext-simplexml": "*",
         "phpunit/php-code-coverage": "^9.0 || ^10.0",
-        "symfony/console": ">=2.7 <7.0",
-        "symfony/finder": ">=2.7 <7.0"
+        "symfony/console": ">=2.7 <8.0",
+        "symfony/finder": ">=2.7 <8.0"
     },
     "require-dev": {
         "phpunit/phpunit": "^9.3 || ^10.0",
-        "symfony/filesystem": ">=2.7 <7.0",
+        "symfony/filesystem": ">=2.7 <8.0",
         "phpspec/prophecy": "^1.0",
         "php-parallel-lint/php-parallel-lint": "^1.4"
     },