➕ test with phpstan 2

Author: Kanti

composer.json

@@ -12,7 +12,7 @@
   "require": {
     "php": "~8.1.0 || ~8.2.0 || ~8.3.0 || ~8.4.0",
     "composer-plugin-api": "^2.1.0",
-    "phpstan/phpstan": "^1.9"
+    "phpstan/phpstan": "^1.9 || ^2.0"
   },
   "require-dev": {
     "pluswerk/grumphp-config": "^7.1.0"