Use Node 21 on asset build

Author: driesvints

.github/workflows/compile-assets.yml

@@ -7,3 +7,4 @@ jobs:
     uses: laravel/.github/.github/workflows/compile-assets.yml@main
     with:
       cmd: build
+      node: "21"

README.md

@@ -7,7 +7,7 @@
 <a href="https://packagist.org/packages/laravel/horizon"><img src="https://img.shields.io/packagist/l/laravel/horizon" alt="License"></a>
 </p>
 
-## Introduction test
+## Introduction
 
 Horizon provides a beautiful dashboard and code-driven configuration for your Laravel powered Redis queues. Horizon allows you to easily monitor key metrics of your queue system such as job throughput, runtime, and job failures.