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

https://github.com/pbui/void-packages iwd
https://github.com/void-linux/void-packages/pull/15954

iwd: update to 1.0.
Tested with eduroam and an open network.

A patch file from https://github.com/void-linux/void-packages/pull/15954.patch is attached