Upload_To_Testflight_parameterized.groovy

stage('Upload to TestFlight') {
      withEnv(["FASTLANE_USER=fastlane_user_email_address"]) {
        withCredentials([
                string([credentialsId: 'fastlane_password_id', variable: 'FASTLANE_PASSWORD']),
        ]) {
          sh "bundle exec fastlane upload_to_testflight bundle_id:$bundle_id"
        }
      }
}