Add Sketch Beta.app v71.0-112664 (#10097)
Add Sketch Beta.app v71.0-112664 (#10097)

* Add Sketch Beta.app v71.0-112664

* Update sketch-beta.rb

* Update sketch-beta.rb

Co-authored-by: Miccal Matthews <a53b0df86fcdccc56e90f3003dd9230c49f140c6@gmail.com>
caskroom/homebrew-versions,caskroom/homebrew-versions,404NetworkError/homebrew-versions,mahori/homebrew-cask-versions,pkq/homebrew-versions,pkq/homebrew-versions,404NetworkError/homebrew-versions