[move to new repository] Support passing Pub/Sub payload to Cloud Run Job via a bucket

Description

Enable the Workflow to store the Pub/Sub event payload in a bucket, and pass the object path to the Cloud Run Job as an environment variable.

Further details

Some payloads may be too large or complex to pass inline. Instead, the Workflow can write the payload to a bucket, then provide a reference path to the Cloud Run Job via an environment variable.

Task list

Acceptance criteria

• Module has an option to save Pub/Sub event payload to a bucket. If enabled:
  • The Pub/Sub payload is saved to a bucket
  • Path to bucket passed to Cloud Run Job as environment variable

Links/references

• https://miro.com/app/board/uXjVIRhf2YI=/
• https://cloud.google.com/workflows/docs/samples/workflows-connector-storage