Bump mypy from 1.12.0 to 1.12.1 in /requirements (#1089)

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:production
  update-type: version-update:semver-patch
...

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

requirements/requirements.txt

@@ -4,5 +4,5 @@ matplotlib == 3.9.2
 cvxpy == 1.5.3
 pytest == 8.3.3 # For unit test
 pytest-xdist == 3.6.1 # For unit test
-mypy == 1.12.0 # For unit test
+mypy == 1.12.1 # For unit test
 ruff == 0.7.0 # For unit test