chore(deps-dev): bump mypy from 1.13.0 to 1.14.0

Bumps [mypy](https://github.com/python/mypy) from 1.13.0 to 1.14.0.
- [Changelog](https://github.com/python/mypy/blob/master/CHANGELOG.md)
- [Commits](python/mypy@v1.13.0...v1.14.0)

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

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

requirements/dev.txt

@@ -5,7 +5,7 @@ factory-boy==3.3.1
 flake8==7.1.1
 ipython==8.30.0
 isort==5.13.2
-mypy==1.13.0
+mypy==1.14.0
 pylint-django==2.6.1
 pylint==3.3.2
 pytest-django==4.9.0