Update osu-development from 2019.831.0 to 2019.906.0 (#7841)
Update osu-development from 2019.831.0 to 2019.906.0 (#7841)


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