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

https://github.com/olafmersmann/void-packages frp-master
https://github.com/void-linux/void-packages/pull/25425

frp: update to 0.34.1.
Update frp to version 0.34.1.

A patch file from https://github.com/void-linux/void-packages/pull/25425.patch is attached