Bump mypy from 1.12.0 to 1.12.1

Bumps [mypy](https://github.com/python/mypy) from 1.12.0 to 1.12.1.
- [Changelog](https://github.com/python/mypy/blob/master/CHANGELOG.md)
- [Commits](python/mypy@v1.12.0...v1.12.1)

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

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

requirements-dev.txt

@@ -5,6 +5,6 @@ flake8-bandit==4.1.1
 flake8-bugbear==24.8.19
 flake8-import-order==0.18.2
 flake8-requirements==2.2.1
-mypy==1.12.0; implementation_name=="cpython"
+mypy==1.12.1; implementation_name=="cpython"
 pre-commit==4.0.1
 sphinx==8.1.3