There's a merged pull request on the void-packages repository

thunderbird: update to 115.1.0
https://github.com/void-linux/void-packages/pull/45310

Description:
[ci skip]

#### Testing the changes
- I tested the changes in this PR: **briefly**

#### Local build testing
- I built this PR locally for my native architecture, x86_64-glibc
- I built this PR locally for these architectures (if supported. mark crossbuilds):
  - [x] x86_64-musl
  - [x] aarch64
  - [x] aarch64-musl
  - [x] armv7l
  - [x] i686