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

Htop: enable sensors support
https://github.com/void-linux/void-packages/pull/27527

Description:
Enables optional sensors support via `libsensors`, see https://github.com/htop-dev/htop/issues/358

From what I've been able to gather, the `libsensors` lib is linked in only at [runtime](https://github.com/htop-dev/htop/blob/master/linux/LibSensors.c), therefore the temperature sensors will be enabled only in systems with `libsensors` and cause no issue on systems without.