Bump nitpick from 0.30.0 to 0.31.0 (#262)

Bumps [nitpick](https://github.com/andreoliwa/nitpick) from 0.30.0 to 0.31.0.
- [Release notes](https://github.com/andreoliwa/nitpick/releases)
- [Changelog](https://github.com/andreoliwa/nitpick/blob/develop/CHANGELOG.md)
- [Commits](andreoliwa/nitpick@v0.30.0...v0.31.0)

---
updated-dependencies:
- dependency-name: nitpick
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

poetry.lock

@@ -62,7 +62,7 @@ django = "^3.2"
 mypy = "^0.931"
 wemake-python-styleguide = "^0.16"
 flake8-pytest-style = "^1.5"
-nitpick = "^0.30"
+nitpick = "^0.31"
 
 safety = "^1.10"