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

https://github.com/baalajimaestro/void-packages update/glibmm2.68/2.76.0
https://github.com/void-linux/void-packages/pull/43231

glibmm2.68: update to 2.76.0.
#### Testing the changes
- I tested the changes in this PR: **YES**

#### Local build testing
- I built this PR locally for my native architecture, glibc, x64

Note: Tested only telegram-desktop, unsure which applications depend on glibmm2.68

A patch file from https://github.com/void-linux/void-packages/pull/43231.patch is attached