Bump mypy from 1.5.1 to 1.6.1

Bumps [mypy](https://github.com/python/mypy) from 1.5.1 to 1.6.1.
- [Changelog](https://github.com/python/mypy/blob/master/CHANGELOG.md)
- [Commits](python/mypy@v1.5.1...v1.6.1)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

poetry.lock

@@ -68,7 +68,7 @@ pytest = "^7.4.2"
 pytest-flake8 = "=1.1.1"
 pytest-cov = "^4.1.0"
 tox = "*"
-mypy = "^1.5"
+mypy = "^1.6"
 isort = "^5.11.5"
 black = "^23.9.1"
 flynt = "^1.0"