zstd: hack include order to ensure that our zstd.h is found
This was on phab before (https://phab.mercurial-scm.org/D12207). Since even with Python 3.10, the situation is still as annoying, I'd like to go ahead with it.
This instance will be upgraded to Heptapod 18.0.1 on 2025-07-10 between 14:00 and 15:00 UTC+2
This was on phab before (https://phab.mercurial-scm.org/D12207). Since even with Python 3.10, the situation is still as annoying, I'd like to go ahead with it.