There is an updated pull request by jkoderu-git against master on the void-packages repository

https://github.com/jkoderu-git/void-packages patch-3
https://github.com/void-linux/void-packages/pull/24199

openvpn: rebuild against mbedtls-2.16.7


A patch file from https://github.com/void-linux/void-packages/pull/24199.patch is attached