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

New package: lua54-luasocket-3.1.0
https://github.com/void-linux/void-packages/pull/41608

Description:
This is derived from lua51-luasocket but without the transitional package luasocket, and from the new upstream (hence the different version).

This version is required to update the prosody package to use lua54 instead of the now-deprecated lua51.

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

#### New package
- This new package conforms to the [package requirements](https://github.com/void-linux/void-packages/blob/master/CONTRIBUTING.md#package-requirements): **YES**

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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):
  - ppc