Bump mypy from 1.13.0 to 1.14.1

Bumps [mypy](https://github.com/python/mypy) from 1.13.0 to 1.14.1.
- [Changelog](https://github.com/python/mypy/blob/master/CHANGELOG.md)
- [Commits](python/mypy@v1.13.0...v1.14.1)

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

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

Author: dependabot[bot]

requirements/dev.txt

@@ -1,2 +1,2 @@
-mypy == 1.13.0
+mypy == 1.14.1
 ruff == 0.8.1