Update AWS and GCP container startup script to run a listener

Currently our [AWS](https://github.com/OriginProtocol/dshop/blob/c987df3dbd958b014b15c3e76482cb88f7c6e5f9/backend/scripts/aws/marketplace/startup_script.sh#L91) and [GCP](https://github.com/OriginProtocol/dshop/blob/c987df3dbd958b014b15c3e76482cb88f7c6e5f9/backend/scripts/gcp/marketplace/startup_script.sh#L91) startup script only run an API server. We should update them to run a listener.