Support psr7 ^2.x

Author: bvweijen

composer.json

@@ -13,7 +13,7 @@
         "php": "^7.1|^8.0",
         "ext-json": "*",
         "guzzlehttp/guzzle": "^6.2 || ^7.0",
-        "guzzlehttp/psr7": "^1.0",
+        "guzzlehttp/psr7": "^1.0 || ^2.0",
         "laravel/framework": "^5.5 || ^6.0 || ^7.0 || ^8.0 || ^9.0"
     },
     "require-dev": {