Update flake8 to 3.9.1#29

pyup-bot wants to merge 1 commit intomastersapumar/dailybot:masterfrom

pyup-update-flake8-3.7.9-to-3.9.1sapumar/dailybot:pyup-update-flake8-3.7.9-to-3.9.1Copy head branch name to clipboard