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

https://github.com/andkem/void-packages libpurple-skypeweb-update
https://github.com/void-linux/void-packages/pull/24642

libpurple-skypeweb: update to 1.7
Since August, the Skype login fails. Updating to version 1.7 fixes the issue.

A patch file from https://github.com/void-linux/void-packages/pull/24642.patch is attached