github action for building wheels is no longer working

[mr-c]

It can't figure out the correct version, perhaps due to missing tags or something in gittaggers.py that needs updating.

https://github.com/common-workflow-language/schema_salad/runs/7062301253?check_suite_focus=true#step:9:34

If there is a better way to derive a version from a git tag, we should probably switch to that

[kinow]

Looks like the egg_info step is not being called on GH Actions, even though I tried to create a venv with similar dependencies, I couldn't reproduce it locally.

I think it could be something in setuptools. It looks like they are phasing out deprecated features, and I think it could be what is causing this issue. Ref: pypa/packaging-problems#248 & pypa/setuptools#2756

https://setuptools.pypa.io/en/latest/history.html#v62-5-0

[mr-c]

This has been fixed!