There is a new pull request by beanpole135 against master on the void-packages repository

https://github.com/beanpole135/void-packages patch/docker
https://github.com/void-linux/void-packages/pull/21254

docker: Fix runit service
The "-s=overlay2" command line flag appears to prevent the service from starting.
Comment out this line in the service file for now.

A patch file from https://github.com/void-linux/void-packages/pull/21254.patch is attached