build(deps-dev): bump mypy from 1.11.2 to 1.12.1

Bumps [mypy](https://github.com/python/mypy) from 1.11.2 to 1.12.1.
- [Changelog](https://github.com/python/mypy/blob/master/CHANGELOG.md)
- [Commits](python/mypy@v1.11.2...v1.12.1)

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

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

{{ cookiecutter.project_slug }}/dev-requirements.txt

@@ -20,7 +20,7 @@ identify==2.6.1
     # via pre-commit
 iniconfig==2.0.0
     # via pytest
-mypy==1.11.2
+mypy==1.12.1
     # via {{ cookiecutter.project_slug }} (pyproject.toml)
 mypy-extensions==1.0.0
     # via mypy