Update tox to 4.9.0#378

pyup-bot wants to merge 1 commit intomasterTheCoreMan/linux-boot-analyzer:masterfrom

pyup-update-tox-3.7.0-to-4.9.0TheCoreMan/linux-boot-analyzer:pyup-update-tox-3.7.0-to-4.9.0Copy head branch name to clipboard