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] <support@github.com>

requirements_dev.txt

@@ -1,6 +1,6 @@
 coverage==7.6.4
 coveralls==4.0.1
-mypy==1.12.0
+mypy==1.12.1
 pytest==8.3.3
 pytest-cov==5.0.0
 pytest-mypy==0.10.3