Allow PHP 8.3 usage (#5)

Author: FabianSchmick

composer.json

@@ -12,7 +12,7 @@
     ],
 
     "require": {
-        "php": "7.2.*|7.4.*|8.0.*|8.1.*",
+        "php": "7.2.*|7.4.*|8.0.*|8.1.*|8.2.*|8.3.*",
         "symfony/config": "^2.4|^3.0|^4.0|^5.0|^6.0",
         "symfony/console": "^2.4|^3.0|^4.0|^5.0|^6.0",
         "symfony/dependency-injection": "^2.4|^3.0|^4.0|^5.0|^6.0",