NumPy version compatibility

[tomwhite]

It's not clear what version of NumPy each cyvcf2 release was built against, which can cause issues with binary compatibility. For example, when running cyvcf2 0.30.16 with NumPy 1.22.4 I get

RuntimeError: module compiled against API version 0x10 but this version of numpy is 0xf

(Ideally I would just upgrade to NumPy 1.23, but I can't since Numba (which I am also using) doesn't support it yet.)

[grahamgower]

Sounds like the wheel-building process should ensure that https://pypi.org/project/oldest-supported-numpy/ is installed. Usually this just goes in the pyproject.toml file as a build requirement, but it might be necessary to modernise the build system.

[tomwhite]

@grahamgower That seems to be exactly what we need - thanks!

[tomwhite]

@brentp could you tag a release sometime so we can test this? Thanks!

[brentp]

done. thanks for the reminder

[tomwhite]

Thanks @brentp!