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

https://github.com/ndowens/void-packages GraphicsMagick
https://github.com/void-linux/void-packages/pull/17775

GraphicsMagick: update to 1.3.34
Signed-off-by: Nathan Owens <ndowens04@gmail.com>

A patch file from https://github.com/void-linux/void-packages/pull/17775.patch is attached