Bump mypy from 1.5.1 to 1.6.0 (#536)

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:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

poetry.lock

@@ -31,7 +31,7 @@ certifi = ">=2022.5.18,<2024.0.0"
 
 [tool.poetry.dev-dependencies]
 black = "^23.9.1"
-mypy = "^1.5"
+mypy = "^1.6"
 types-urllib3 = "^1.26.25"
 Sphinx = "^7.1.2"
 sphinx-rtd-theme = "^1.3.0"