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

https://github.com/ericonr/void-packages pam
https://github.com/void-linux/void-packages/pull/25506

[NOMERGE] Update pam to 1.4.0 and remove noarch from pam-base.
Had to do some patching around, but the patches are fully documented.

Please test it out in whatever weird setups you have!

A patch file from https://github.com/void-linux/void-packages/pull/25506.patch is attached