Add Ruby 2.7 binary.
Add Ruby 2.7 binary.

SketchUp/testup-2,thomthom/testup-2,thomthom/testup-2,SketchUp/testup-2,SketchUp/testup-2,thomthom/testup-2,thomthom/testup-2,thomthom/testup-2,SketchUp/testup-2,thomthom/testup-2,SketchUp/testup-2,SketchUp/testup-2