setuptools warnings while building wheels

[mgorny]

E.g. while building types-setuptools-78.1.0.20250329:

/usr/lib/python3.10/site-packages/setuptools/dist.py:759: SetuptoolsDeprecationWarning: License classifiers are deprecated.
!!

        ********************************************************************************
        Please consider removing the following classifiers in favor of a SPDX license expression:

        License :: OSI Approved :: Apache Software License

        See https://packaging.python.org/en/latest/guides/writing-pyproject-toml/#license for details.
        ********************************************************************************

!!
  self._finalize_license_expression()

[srittau]

Thanks, typeshed-internal/stub_uploader#164.

[srittau]

This should now be fixed for new uploads.

[mgorny]

Thank you!