GCP Pub/Sub binding spec

apiVersion: dapr.io/v1alpha1
kind: Component
metadata:
  name: <NAME>
  namespace: <NAMESPACE>
spec:
  type: bindings.gcp.pubsub
  version: v1
  metadata:
  - name: topic
    value: topic1
  - name: subscription
    value: subscription1
  - name: type
    value: service_account
  - name: project_id
    value: project_111
  - name: private_key_id
    value: *************
  - name: client_email
    value: name@domain.com
  - name: client_id
    value: '1111111111111111'
  - name: auth_uri
    value: https://accounts.google.com/o/oauth2/auth
  - name: token_uri
    value: https://oauth2.googleapis.com/token
  - name: auth_provider_x509_cert_url
    value: https://www.googleapis.com/oauth2/v1/certs
  - name: client_x509_cert_url
    value: https://www.googleapis.com/robot/v1/metadata/x509/<project-name>.iam.gserviceaccount.com
  - name: private_key
    value: PRIVATE KEY