Bump mypy from 0.941 to 0.942 in /glean-core/python

Bumps [mypy](https://github.com/python/mypy) from 0.941 to 0.942.
- [Release notes](https://github.com/python/mypy/releases)
- [Commits](https://github.com/python/mypy/compare/v0.941...v0.942)

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

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

glean-core/python/requirements_dev.txt

@@ -5,7 +5,7 @@ coverage==6.2
 flake8==4.0.1
 flake8-bugbear==22.3.23
 jsonschema==3.2.0
-mypy==0.941
+mypy==0.942
 pdoc3==0.10.0
 pip
 pytest-localserver==0.5.1