Update flake8-comprehensions requirement from ~=3.5 to ~=3.6
Updates the requirements on [flake8-comprehensions](https://github.com/adamchainz/flake8-comprehensions) to permit the latest version.
- [Release notes](https://github.com/adamchainz/flake8-comprehensions/releases)
- [Changelog](https://github.com/adamchainz/flake8-comprehensions/blob/main/HISTORY.rst)
- [Commits](https://github.com/adamchainz/flake8-comprehensions/compare/3.5.0...3.6.1)
---
updated-dependencies:
- dependency-name: flake8-comprehensions
dependency-type: direct:production
...
Signed-off-by: dependabot[bot] <support@github.com>