There is a new pull request by Wychmire against master on the void-packages repository

https://github.com/Wychmire/void-packages protontricks
https://github.com/void-linux/void-packages/pull/14569

protontricks: update to 1.2.5
Update protontricks to 1.2.5 and use the package name instead of a variable for the homepage so the entry in void-updates.txt leads to the right place.

A patch file from https://github.com/void-linux/void-packages/pull/14569.patch is attached