setuptools_scm 8 has changed write_to to version_file

[erykoff]

The pyproject.toml on rubin_sim uses write_to to create the version file. But this has been changed with setuptools_scm version 8: https://github.com/pypa/setuptools_scm/blob/main/CHANGELOG.rst#v800

So the version of setuptools_scm needs to be pinned at < 8, and/or the new API needs to be used. The rubin_sim_feedstock needs corresponding changes.

I have no idea if it's possible to support both versions at the same time. Fun!

[rmjarvis]

They're up to 8.0.3 now. I haven't checked whether things work with this version, but they presumably got a lot of complaints about their breaking change...

https://github.com/pypa/setuptools_scm/blob/main/CHANGELOG.md

[rhiannonlynne]

I tried updating to what should work with version 8, and it still doesn't create a version file.
So for now, I guess I'll stick with pinning the version.

[rhiannonlynne]

Should be resolved with #364