Bump mypy from 0.930 to 0.931

Bumps [mypy](https://github.com/python/mypy) from 0.930 to 0.931.
- [Release notes](https://github.com/python/mypy/releases)
- [Commits](python/mypy@v0.930...v0.931)

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

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

pyproject.toml

@@ -44,7 +44,7 @@ flake8 = "^4.0.1"
 isort = "^5.10.1"
 pdoc = "^8.2.0"
 types-setuptools = "^57.4.7"
-mypy = "^0.930"
+mypy = "^0.931"
 debugpy = "^1.5.1"
 ipython = "^7.31.0"
 pytest-cov = "^3.0.0"