Bump pep8-naming from 0.12.0 to 0.12.1

Bumps [pep8-naming](https://github.com/PyCQA/pep8-naming) from 0.12.0 to 0.12.1.
- [Release notes](https://github.com/PyCQA/pep8-naming/releases)
- [Changelog](https://github.com/PyCQA/pep8-naming/blob/master/CHANGELOG.rst)
- [Commits](PyCQA/pep8-naming@0.12.0...0.12.1)

---
updated-dependencies:
- dependency-name: pep8-naming
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Diff for: poetry.lock

@@ -24,7 +24,7 @@ mkdocs-material = "^7.1.8"
 black = "^21.7b0"
 codespell = "^2.1.0"
 flake8 = "^3.9.2"
-pep8-naming = "^0.12.0"
+pep8-naming = "^0.12.1"
 
 [tool.black]
 line-length = 120