chore: Add flake8 static check (#449)
chore: Add flake8 static check (#449)

* remove trailing whitespace

* add flake8 static check to check_format.sh and Dockerfile

* fix flake8 issues tools/slo-generator

* fix flake8 issues tools/quota-manager

* ignore line length

* remove trailing whitespace

* fix tools

* fix examples

* remove max line length as it's later ignored
google/slo-generator