Bump mypy from 2.3.1 to 2.4.0

Bumps [mypy](https://github.com/python/mypy) from 2.3.1 to 2.4.0.
- [Changelog](https://github.com/python/mypy/blob/master/CHANGELOG.md)
- [Commits](python/mypy@v2.3.1...v2.4.0)

---
updated-dependencies:
- dependency-name: mypy
  dependency-version: 2.4.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Pipfile

@@ -12,7 +12,7 @@ pydantic = "==2.13.5"
 black = "==26.10.0"
 pytest = "==9.1.1"
 pytest-mock = "==3.16.0"
-mypy = "==2.3.1"
+mypy = "==2.4.0"
 pytest-mypy-plugins = "==4.0.3"
 pytest-cov = "==7.1.0"