Setuptools-ext

What's Changed
* wrap build_sdist hook. closes 13 by wimglenn in https://github.com/wimglenn/setuptools-ext/pull/16
* drop support for Python 3.7. Python 3.8+ required.

**Full Changelog**: https://github.com/wimglenn/setuptools-ext/compare/0.8...0.9

What's Changed
* Indicate setuptools-ext version in WHEEL file by wimglenn in https://github.com/wimglenn/setuptools-ext/pull/15


**Full Changelog**: https://github.com/wimglenn/setuptools-ext/compare/0.7...0.8

What's Changed
* Generalise the wheel update procedure, thus making it easy for other backends to do the same tricks by pelson in https://github.com/wimglenn/setuptools-ext/pull/12

New Contributors
* pelson made their first contribution in https://github.com/wimglenn/setuptools-ext/pull/12

**Full Changelog**: https://github.com/wimglenn/setuptools-ext/compare/0.6...0.7

What's Changed
* Ensure long metadata lines aren't wrapped. Closes 9 by wimglenn in https://github.com/wimglenn/setuptools-ext/pull/10


**Full Changelog**: https://github.com/wimglenn/setuptools-ext/compare/0.5...0.6

- remove a workaround that setuptools-ext was doing now that https://github.com/pypi/warehouse/issues/11220 is fixed

- Require setuptools >= 61.0.0 only on Python 3.7+, this forces support for reading metadata from `pyproject.toml` _when possible_ without constraining usage on older Python versions (which may still read their metadata from `setup.cfg`)