update Laravel installation link to use latest version

Author: jordikroon

include/download-instructions/fw-laravel.php

@@ -2,5 +2,5 @@
 Instructions for installing PHP for Laravel development can be found on:
 </p>
 <p>
-» <a href='https://laravel.com/docs/12.x/installation#installing-php'>https://laravel.com/docs/12.x/installation#installing-php</a>
+» <a href='https://laravel.com/docs/installation#installing-php'>https://laravel.com/docs/installation#installing-php</a>
 </p>