Update pep8-naming to 0.15.0

[pyup-bot]

This PR updates pep8-naming from 0.14.1 to 0.15.0.

Changelog

0.15.0

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

* Add support for Python 3.13.
* Drop support for Python 3.8.
* N808 checks type variable names use the CapWords convention and have an appropriate suffix.

Links

• PyPI: https://pypi.org/project/pep8-naming
• Changelog: https://data.safetycli.com/changelogs/pep8-naming/
• Repo: https://github.com/PyCQA/pep8-naming

[pyup-bot]

Closing this in favor of #228