About Unity Window has invalid link

Steps to reproduce:

1. Open a Unity Project
2. Open the About Unity Window via Help > About Unity
3. Click on the 'Special thanks to our beta users' link

Actual results: The link redirects to a page that is no longer available (Not found / 404)

Expected results: The link redirects to a page that is available

Reproducible with versions: 6000.0.27f1

Not reproducible with versions: 2022.3.52f1, 2021.3.45f1

Can’t test with versions: 7000.0.0a9 (alpha version), 6000.1.0a4 (alpha version)

Tested on (OS): Windows 10/11

Notes: -