Update slack-beta from 4.1.0-beta5 to 4.1.0 (#7948)
Update slack-beta from 4.1.0-beta5 to 4.1.0 (#7948)


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