Upgrade to Laravel 9 (#4413)

Co-authored-by: DaneEveritt <dane@daneeveritt.com>

app/Traits/Controllers/PlainJavascriptInjection.php

@@ -1,10 +1,4 @@
 <?php
-/**
- * Created by PhpStorm.
- * User: Stan
- * Date: 26-5-2018
- * Time: 20:56.
- */
 
 namespace Pterodactyl\Traits\Controllers;
 
@@ -17,6 +11,6 @@ trait PlainJavascriptInjection
      */
     public function injectJavascript($data)
     {
-        Javascript::put($data);
+        JavaScript::put($data);
     }
 }