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

https://github.com/ahesford/void-packages grpcio
https://github.com/void-linux/void-packages/pull/25014

New packages: python3-grpcio{,-tools}-1.32.0


A patch file from https://github.com/void-linux/void-packages/pull/25014.patch is attached