Move setup.py to pyproject.toml #31
Description
This doesn't have to be this PR, but this should all get moved over to pyproject.toml. Setup.py has been deprecated and pip should be giving warnings when installing. I'd also recommend changing from setuptools to one of [uv, hatch, or poetry]. I've transitioned to using hatch as optking's build system. I think some of the MolSSI projects have started using poetry. That should also simplify uploading to pypi and conda-forge.
Originally posted by @AlexHeide in #28 (comment)