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

https://github.com/classabbyamp/void-packages common/parallel-check
https://github.com/void-linux/void-packages/pull/37496

enable running tests in parallel
- common: add disable_parallel_check
- common/build-style: make do_check run in parallel unless disabled
- Manual.md: document disable_parallel_check

Redux of #31811, incorporating some of the outstanding feedback when it was stale-closed.

Adds `-j$XBPS_MAKEJOBS` to do_check in several build-styles, with the option to disable it if it causes issues.

I did *not* change the `python3-{modules,pep517}` build-styles to opt-out of parallel checks, because they require a 3rd-party library to do it (and it only works with pytest tests). If a python3 package has tests that require `python3-pytest-xdist` to run, but have issues with parallel tests, parallel behaviour can still be disabled by `disable_parallel_check` (which would set the xdist equivalent of `-j1`).

<!-- Uncomment relevant sections and delete options which are not applicable -->

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



A patch file from https://github.com/void-linux/void-packages/pull/37496.patch is attached