Bump PHPStan version

Author: simPod

composer.json

@@ -19,9 +19,9 @@
         "doctrine/coding-standard": "^8.0"
     },
     "require-dev": {
-        "phpstan/phpstan": "0.12.4",
-        "phpstan/phpstan-phpunit": "0.12.5",
-        "phpstan/phpstan-strict-rules": "0.12.1",
+        "phpstan/phpstan": "0.12.25",
+        "phpstan/phpstan-phpunit": "0.12.11",
+        "phpstan/phpstan-strict-rules": "0.12.2",
         "phpunit/phpunit": "^8.5"
     },
     "config": {