Add PHP 8.1 to list of supported PHP versions

Author: jimhlad

composer.json

@@ -16,7 +16,7 @@
         }
     ],
     "require": {
-        "php": "^7.4|^8.0",
+        "php": "^7.4|^8.0|^8.1",
         "illuminate/support": "^8|^9",
         "laravel/legacy-factories": "^1.0"
     },