Merge pull request rjvandoesburg#25 from analytical42/add-laravel8-support

Laravel 8 support

Author: rjvandoesburg

composer.json

@@ -11,7 +11,7 @@
     "require": {
         "php": ">=5.6.4",
         "laravel/framework": "*",
-        "guzzlehttp/guzzle": "^6.0",
+        "guzzlehttp/guzzle": "^6.0|^7",
         "ext-json": "*"
     },
     "autoload": {