build(deps): bump mypy from 0.930 to 0.931 (pydantic#3656)

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:production
  update-type: version-update:semver-minor
...

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

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

Author: dependabot[bot]

tests/requirements-linting.txt

@@ -3,7 +3,7 @@ flake8==4.0.1
 flake8-quotes==3.3.1
 hypothesis==6.31.6
 isort==5.10.1
-mypy==0.930
+mypy==0.931
 pre-commit==2.17.0
 pycodestyle==2.8.0
 pyflakes==2.4.0

tests/requirements-testing.txt

@@ -2,7 +2,7 @@ coverage==6.3.2
 hypothesis==6.31.6
 # pin importlib-metadata as upper versions need typing-extensions to work if on python < 3.8
 importlib-metadata==3.1.0;python_version<"3.8"
-mypy==0.930
+mypy==0.931
 pytest==6.2.5
 pytest-cov==3.0.0
 pytest-mock==3.6.1