Add support php-8

Author: max-kut

composer.json

@@ -16,7 +16,7 @@
         }
     ],
     "require": {
-        "php": "^7.4",
+        "php": "^7.4|^8.0",
         "illuminate/config": "^7.0|^8.0",
         "illuminate/database": "^7.0|^8.0",
         "illuminate/support": "^7.0|^8.0",