build(deps): bump mypy from 1.5.1 to 1.6.0 in /.github/workflows/style (#40422)

Bumps [mypy](https://github.com/python/mypy) from 1.5.1 to 1.6.0.
- [Commits](https://github.com/python/mypy/compare/v1.5.1...v1.6.0)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/style/requirements.txt

@@ -2,6 +2,6 @@ black==23.9.1
 clingo==5.6.2
 flake8==6.1.0
 isort==5.12.0
-mypy==1.5.1
+mypy==1.6.0
 types-six==1.16.21.9
 vermin==1.5.2