Update mullvadvpn-beta from 2020.3-beta1 to 2020.4-beta2 (#8892)
Update mullvadvpn-beta from 2020.3-beta1 to 2020.4-beta2 (#8892)


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