Use phpstan 2

Author: stof

composer.json

@@ -17,7 +17,7 @@
         "phpunit/phpunit":"^9.1 || ^10.1 || ^11.0 || ^12.0 || ^13.0"
     },
     "require-dev": {
-        "phpstan/phpstan": "^1.10"
+        "phpstan/phpstan": "^2.1.38"
     },
     "autoload": {
         "psr-4": {