feat(sponnet): Added support for pubsub triggers (#4828)
feat(sponnet): Added support for pubsub triggers (#4828)

* feat(jsonnet): add support for pubsub triggers

* Reformat lines following feedback (using jsonnetfmt)

spinnaker/spinnaker,spinnaker/spinnaker,duftler/spinnaker,duftler/spinnaker,duftler/spinnaker,duftler/spinnaker,spinnaker/spinnaker,spinnaker/spinnaker