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

https://github.com/tommyjanna/void-packages urxvt-font-size
https://github.com/void-linux/void-packages/pull/27361

New package: urxvt-font-size-1.3


A patch file from https://github.com/void-linux/void-packages/pull/27361.patch is attached