Allow Symfony 7

Changes necessary for this package to be used with Symfony 7, there are no BC issues (vs SF 6)

Author: mythxxx

composer.json

@@ -26,8 +26,8 @@
         "php": ">=5.6.0",
         "portphp/portphp": "^1.0.0",
         "seld/signal-handler": "^1.0 || ^2.0",
-        "symfony/property-access": "^2.3 || ^3.0 || ^4.0 || ^5.0 || ^6.0",
-        "symfony/validator": "^2.5 || ^3.0 || ^4.0 || ^5.0 || ^6.0",
+        "symfony/property-access": "^2.3 || ^3.0 || ^4.0 || ^5.0 || ^6.0 || ^7.0",
+        "symfony/validator": "^2.5 || ^3.0 || ^4.0 || ^5.0 || ^6.0 || ^7.0",
         "psr/log": "^1.0 || ^2.0 || ^3.0"
     },
     "autoload": {