There is a new pull request by 0x5c against master on the void-packages repository

https://github.com/0x5c/void-packages manual-post-functions
https://github.com/void-linux/void-packages/pull/36412

Manual.md: document the check functions
The pre_/do_/post_check functions were not listed in the list of building
phase functions, and were not mentioned elsewhere (do_check was mentioned
once). This documents their existence.

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

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A patch file from https://github.com/void-linux/void-packages/pull/36412.patch is attached