add support for laravel 9

Author: deviddev

README.md

@@ -2,7 +2,7 @@
 
 This is a simple Laravel (PHP) wrapper for Billingo (billingo.hu) API V3 SwaggerHUB PHP SDK.
 
-Compatible with: Laravel 6.x (LTS), Laravel 8.x or PHP 7.4<=
+Compatible with: Laravel 6.x (LTS), Laravel 8.x and 9.x or PHP 7.4<=
 
 **You can use the wrapper easily with all type of PHP projects (not just Laravel) from 1.0.0 version without changing except downloadInvoice method.**
 

composer.json

@@ -19,7 +19,7 @@
     ],
     "require": {
         "php": ">=7.4",
-        "illuminate/support": "^6|^8",
+        "illuminate/support": "^6|^8|^9",
         "deviddev/billingo-api-v3-php-sdk": "^0.2.6"
     },
     "require-dev": {