Update tox from 3.1.2 to 3.2.1
Update tox from 3.1.2 to 3.2.1
chrisdev/wagtail-cookiecutter-foundation,ilendl2/wagtail-cookiecutter-foundation,ilendl2/wagtail-cookiecutter-foundation,chrisdev/wagtail-cookiecutter-foundation,chrisdev/wagtail-cookiecutter-foundation,ilendl2/wagtail-cookiecutter-foundation