Bump flake8-docstrings from 1.5.0 to 1.6.0

Bumps [flake8-docstrings](https://gitlab.com/pycqa/flake8-docstrings) from 1.5.0 to 1.6.0.
- [Release notes](https://gitlab.com/pycqa/flake8-docstrings/tags)
- [Changelog](https://gitlab.com/pycqa/flake8-docstrings/blob/master/HISTORY.rst)
- [Commits](https://gitlab.com/pycqa/flake8-docstrings/compare/1.5.0...1.6.0)

---
updated-dependencies:
- dependency-name: flake8-docstrings
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

lint-requirements.txt

@@ -1,6 +1,6 @@
 flake8==4.0.1
 flake8-bugbear==22.3.23
-flake8-docstrings==1.5.0
+flake8-docstrings==1.6.0
 flake8-import-order==0.18.1
 flake8-quotes==3.3.1
 flake8-commas==2.1.0