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

https://github.com/jnbr/void-packages imagemagick
https://github.com/void-linux/void-packages/pull/18744

ImageMagick: update to 7.0.9.20. 


A patch file from https://github.com/void-linux/void-packages/pull/18744.patch is attached