build(deps-dev): bump the dev-dependencies group with 2 updates

Bumps the dev-dependencies group with 2 updates: [mypy](https://github.com/python/mypy) and [pytest](https://github.com/pytest-dev/pytest).


Updates `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)

Updates `pytest` from 8.3.3 to 8.3.4
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@8.3.3...8.3.4)

---
updated-dependencies:
- dependency-name: mypy
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: dev-dependencies
- dependency-name: pytest
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: dev-dependencies
...

Signed-off-by: dependabot[bot] <[email protected]>