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

mtxclient: update to 0.6.2 for nheko crash
https://github.com/void-linux/void-packages/pull/35854

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

quoting upstream:
> This release fixes a crash in Nheko if the Matrix server is updated to support the APIs v1.1 and up

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#### Local build testing
- I built this PR locally for my native architecture, (x86_64 musl)
- I built this PR locally for these architectures (if supported. mark crossbuilds):
  - aarch64-musl
  - armv7l
  - armv6l-musl