Update powershell-preview from 7.0.0-rc.3 to 7.1.0-preview.1 (#8970)
Update powershell-preview from 7.0.0-rc.3 to 7.1.0-preview.1 (#8970)


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