Allow webmozart/assert v2 (#34)

Author: ruudk

composer.json

@@ -14,7 +14,7 @@
         "symfony/finder": "^7.4 || ^8.0",
         "symfony/string": "^7.4 || ^8.0",
         "symfony/type-info": "^7.4 || ^8.0",
-        "webmozart/assert": "^1.11",
+        "webmozart/assert": "^1.12 || ^2.0",
         "webonyx/graphql-php": "^15.24.0"
     },
     "require-dev": {