Bump mypy from 0.931 to 0.942

Bumps [mypy](https://github.com/python/mypy) from 0.931 to 0.942.
- [Release notes](https://github.com/python/mypy/releases)
- [Commits](python/mypy@v0.931...v0.942)

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

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

Author: dependabot[bot]

requirements/local.txt

@@ -11,6 +11,6 @@ flake8==4.0.1
 ipdb==0.13.9
 ipython==8.1.1
 
-mypy==0.931
+mypy==0.942
 django-stubs==1.9.0
 djangorestframework-stubs==1.4.0