Add support for php8

Author: lloricode

composer.json

@@ -16,7 +16,7 @@
         }
     ],
     "require": {
-        "php": "^7.1",
+        "php": "^7.1|^8.0",
         "illuminate/http": "5.6.*|5.7.*|5.8.*|6.*|7.*|8.*",
         "illuminate/support": "5.6.*|5.7.*|5.8.*|6.*|7.*|8.*",
         "intervention/image": "^2.4"