Update dropbox-beta from 95.3.437 to 96.3.159 (#8953)
Update dropbox-beta from 95.3.437 to 96.3.159 (#8953)


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