Added support for Laravel 9 (#13)

Author: yoeriboven

Diff for: composer.json

@@ -12,9 +12,9 @@
     "minimum-stability": "dev",
     "require": {
         "php": "^8.0|^7.4",
-        "illuminate/support": "7.*|8.*",
-        "illuminate/http": "7.*|8.*",
-        "illuminate/routing": "7.*|8.*"
+        "illuminate/support": "7.*|8.*|9.*",
+        "illuminate/http": "7.*|8.*|9.*",
+        "illuminate/routing": "7.*|8.*|9.*"
     },
     "autoload": {
         "psr-4": {