Support Illuminate Collections 9.x

Author: ShawnCZek

composer.json

@@ -51,7 +51,7 @@
         "php": "^7.4|^8.0",
         "nesbot/carbon": "^2.16",
         "guzzlehttp/guzzle": "^7.3",
-        "illuminate/collections": "^8.0"
+        "illuminate/collections": "^8.0|^9.0"
     },
     "require-dev": {
         "phpunit/phpunit": "^9.3",