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

https://github.com/pullmoll/void-packages xorg-server
https://github.com/void-linux/void-packages/pull/26869

xorg-server: update to 1.20.10
Also add a patch to fix build w/ musl-1.2.1

A patch file from https://github.com/void-linux/void-packages/pull/26869.patch is attached