Bump tox from 3.18.0 to 3.18.1#18

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dependabot-preview[bot] wants to merge 3 commits intodevelfrom

dependabot/pip/devel/tox-3.18.1

Commits on Jul 28, 2020

Bump tox from 3.18.0 to 3.18.1
dependabot-preview[bot]
authored

Commits on Jul 29, 2020

Switch refs to main for Github Actions after deprecation
Chris Horsley
committed
Add command for pipenv to setup.py req sync, add .vscode to ignore
Chris Horsley
committed