Update mullvadvpn-beta from 2020.6-beta3 to 2020.7-beta1 (#9898)
Update mullvadvpn-beta from 2020.6-beta3 to 2020.7-beta1 (#9898)




caskroom/homebrew-versions,mahori/homebrew-cask-versions,caskroom/homebrew-versions,404NetworkError/homebrew-versions,pkq/homebrew-versions,pkq/homebrew-versions,404NetworkError/homebrew-versions