Setuptools struggling with license file in wheels

https://github.com/pypa/setuptools/issues/4759

https://github.com/ToFuProject/datastock/actions/runs/14229705919/job/39877507921?pr=223

Consider moving packaging backend to [hatchling](https://pypi.org/project/hatchling/) ?

cf. https://github.com/astral-sh/uv/issues/10733#issuecomment-2599726217