Update composer.json

Author: freekmurze

composer.json

@@ -38,7 +38,11 @@
         "format": "vendor/bin/php-cs-fixer fix --allow-risky=yes"
     },
     "config": {
-        "sort-packages": true
+        "sort-packages": true,
+        "allow-plugins": {
+            "phpstan/extension-installer": true,
+            "pestphp/pest-plugin": true
+        }
     },
     "minimum-stability": "dev",
     "prefer-stable": true