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

teeworlds: fix CVE-2021-43518
https://github.com/void-linux/void-packages/pull/43479

Description:
#### Testing the changes
- I tested the changes in this PR: **briefly** (just playing the game, not the vulnerability)

#### 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):
  - x86_64-musl (crossbuild)
  - armv7l-glibc (crossbuild)
  - aarch64b-glibc (crossbuild)