Bump mypy from 1.11.2 to 1.12.0 (#433)

Bumps [mypy](https://github.com/python/mypy) from 1.11.2 to 1.12.0.
- [Changelog](https://github.com/python/mypy/blob/master/CHANGELOG.md)
- [Commits](python/mypy@v1.11.2...v1.12.0)

---
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>

requirements-test.txt

@@ -1,6 +1,6 @@
 aioresponses==0.7.6
 coverage==7.6.1
-mypy==1.11.2
+mypy==1.12.0
 pytest-asyncio==0.24.0
 pytest-cov==5.0.0
 pytest-error-for-skips==2.0.2