[REALMS-10333] Gametest packs no longer working on realms

Update on this issue:

^{19 July 2022 by [Mojang] CornerHard} ^-
Gametest packs allow you do to lots of exciting things on Realms, and we are working hard to support them properly in an upcoming update.

So, my behavior pack that requires of gametest to work stopped working after 1.19.0… This was because of the JavaScript change to script and stuff in the manifest, so we changed it to make it work, and after some changes it worked in 1.19.0, on a normal world. The problem is that when I tried uploading it to the realm, the upload was successful, but the pack is no longer working in the realm.
The same pack used to work before 1.19.0 in the realm, without any issues.

Steps to reproduce:
1. Upload a behavior pack that requires of gametest (gametest pack) to a realm
2. Join the realm

Observed Results:
The pack is not working in the realm even when it works on single player

Expected Results:
The pack should work fine without any problem or inconvenience.