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

https://github.com/skmpz/void-packages libksba-1.4.0
https://github.com/void-linux/void-packages/pull/23853

libksba: update to 1.4.0


A patch file from https://github.com/void-linux/void-packages/pull/23853.patch is attached