language: update google-proto-files dependency
language: update google-proto-files dependency

jcking/google-cloud-node,googleapis/google-cloud-node,ofrobots/google-cloud-node,callmehiphop/gcloud-node,jcking/google-cloud-node,GoogleCloudPlatform/gcloud-node,jgeewax/gcloud-node,tcrognon/google-cloud-node,googleapis/google-cloud-node,ofrobots/google-cloud-node,ofrobots/google-cloud-node,googleapis/google-cloud-node,GoogleCloudPlatform/gcloud-node,tcrognon/google-cloud-node,googleapis/google-cloud-node,jgeewax/gcloud-node,jcking/google-cloud-node,callmehiphop/gcloud-node,GoogleCloudPlatform/gcloud-node