Update composer.json

Author: GrahamCampbell

vendor-bin/phpstan/composer.json

@@ -3,8 +3,7 @@
         "php": "^8.1",
         "phpstan/phpstan": "2.1.6",
         "phpstan/phpstan-deprecation-rules": "2.0.1",
-        "phpstan/phpstan-strict-rules": "2.0.3",
-        "ergebnis/phpstan-rules": "2.8.0"
+        "phpstan/phpstan-strict-rules": "2.0.3"
     },
     "config": {
         "preferred-install": "dist"