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

https://github.com/Piraty/void-packages argon2-bzero-threads
https://github.com/void-linux/void-packages/pull/12531

argon2: add upstream patches
* Wait for already running threads if a thread creation failed.
* use explicit_bzero() to clear memory

A patch file from https://github.com/void-linux/void-packages/pull/12531.patch is attached