update laravel/ui requirement for Laravel 8.x support

Author: michaeldyrynda

composer.json

@@ -9,7 +9,7 @@
   "license": "MIT",
   "require": {
     "laravel/framework": "^8.0",
-    "laravel/ui": "^2.0"
+    "laravel/ui": "^3.0"
   },
   "autoload": {
     "psr-4": {