Bump mypy from 1.5.1 to 1.6.0 (#79)

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

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

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

requirements-test.txt

@@ -1,6 +1,6 @@
 black==23.9.1
 flake8==6.1.0
-mypy==1.5.1
+mypy==1.6.0
 pylint==3.0.1
 pytest-asyncio==0.21.1
 pytest==7.4.2