Add Laravel 9 support (#81)

Author: erik-ropez

composer.json

@@ -11,7 +11,7 @@
     ],
     "require": {
         "php": "^7.2|^8.0",
-        "laravel/framework": "^6.0|^7.0|^8.0"
+        "laravel/framework": "^6.0|^7.0|^8.0|^9.0"
     },
     "autoload": {
         "psr-4": {