Update check-manifest to 0.50

[pyup-bot]

This PR updates check-manifest from 0.46 to 0.50.

Changelog

0.50

-----------------

- Add Python 3.12 and 3.13 support.

0.49

-----------------

- Add Python 3.11 support.

- Drop Python 3.6 support.

- Exclude more common dev/test files.

0.48

-----------------

- Add Python 3.10 support.

- Switch to tomli instead of toml, after hearing about PEP-680.  tomli will be
included in the Python 3.11 standard library as tomllib, while toml is
apparently unmaintained.

- Fix submodule support when ``.gitmodules`` exists in a subdirectory
(`153 <https://github.com/mgedmin/check-manifest/issues/153>`_).
Note that this reverts a fix for `124
<https://github.com/mgedmin/check-manifest/issues/124>`_: git versions before
2.11 are no longer supported.

0.47

-----------------

- Fix ``setuptools_scm`` workaround for packages with dashes in the name
(`145 <https://github.com/mgedmin/check-manifest/issues/145>`_).

Links

• PyPI: https://pypi.org/project/check-manifest
• Changelog: https://data.safetycli.com/changelogs/check-manifest/
• Repo: https://github.com/mgedmin/check-manifest