Remove `pkg_resources` package from `types-setuptools`, not before January 2025

[Avasam]

As of https://setuptools.pypa.io/en/latest/history.html#v71-1-0, pkg_resources is marked as py.typed.

Being a separate package, I don't thinks this will require adding partial_stub = true to stubs/setuptools/METADATA.toml if stubs/setuptools/pkg_resources is simply removed entirely.