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

https://github.com/pbui/void-packages dhcpcd-revert
https://github.com/void-linux/void-packages/pull/15885

dhcpcd: revert to 8.0.6 due to high CPU usage issue
This reverts commit ba04e4d1dd1e7d004ba377d2318cbe8e233839e4.

A patch file from https://github.com/void-linux/void-packages/pull/15885.patch is attached