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

https://github.com/newbluemoon/void-packages lilypond
https://github.com/void-linux/void-packages/pull/35538

lilypond: update to 2.23.6
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#### Testing the changes
- I tested the changes in this PR: **YES**
- tested on x86_64 and i686
- check on i686 fails again due to floating point stuff

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A patch file from https://github.com/void-linux/void-packages/pull/35538.patch is attached