Update tox.ini

Automatically created by the almighty Aleksolotl.

added auto-update check::update-tox-ini labels

added 12 commits

• 625c51c0...d90581a1 - 10 commits from branch master
• cdc90f91 - Update tox.ini
• 556933c9 - Fix lint and reformat

Compare with previous version

mentioned in commit 6b7ef03b

merged