Update black from 21.8b0 to 21.9b0
Update black from 21.8b0 to 21.9b0
ryankanno/cookiecutter-django,ryankanno/cookiecutter-django,trungdong/cookiecutter-django,ryankanno/cookiecutter-django,trungdong/cookiecutter-django,ryankanno/cookiecutter-django,pydanny/cookiecutter-django,trungdong/cookiecutter-django,pydanny/cookiecutter-django,pydanny/cookiecutter-django,trungdong/cookiecutter-django,pydanny/cookiecutter-django