There is an updated pull request by Clyybber against master on the void-packages repository

https://github.com/Clyybber/void-packages qjackctl
https://github.com/void-linux/void-packages/pull/15851

qjackctl: update to 0.6.0


A patch file from https://github.com/void-linux/void-packages/pull/15851.patch is attached