There's a merged pull request on the void-packages repository

xbps-src: add make_check=ci-skip
https://github.com/void-linux/void-packages/pull/30339

Description:
For packages with tests failing as root or similar.

`test $XBPS_CHROOT_CMD = ethereal` could be used in practice instead of XBPS_BUILD_ENVIRONMENT, but I like that way more for possibility of configuration local env as ci, and not conflating CI with chroot style.

Some packages are not tested locally yet.