supported Laravel 8 (#6)

Co-authored-by: HUNG.TV <[email protected]>

Author: hungcrush

composer.json

@@ -17,7 +17,7 @@
     ],
     "require": {
         "php": "^7.1.3",
-        "laravel/framework": "^5.6|^6|^7"
+        "laravel/framework": "^5.6|^6|^7|^8"
     },
     "require-dev": {
         "phpunit/phpunit": "^6.1|^7.0|^8.0",