Update virtualbox-beta from 6.0.0_BETA3,127054 to 6.0.8,130520 (#7473)
Update virtualbox-beta from 6.0.0_BETA3,127054 to 6.0.8,130520 (#7473)


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