Checks out a private action to ./.github/actions/<owner>/<repo> and outputs this local path as 'path' so you can conveniently use it as 'uses: stepts.<this-step>.outputs.path' in your workflow. Update: since GitHub doesn't yet allow using variables/env inside 'uses: ', this output cannot be used atm. Use 'use: ./.github/actions/<owner>/<repo>' directly for now