Re-enable invoicing pipeline deployment (#764)

Now that beam deployment is compatible with Java 11. Re-enable this
step.

release/cloudbuild-deploy.yaml

@@ -56,13 +56,13 @@ steps:
 #      "gs://$${project_id}-beam/cloudsql/admin_credential.enc" \
 #      deploy_spec11_pipeline --project $${project_id}
 # Deploy the invoicing pipeline to GCS.
-#- name: 'gcr.io/$PROJECT_ID/nomulus-tool:latest'
-#  args:
-#  - -e
-#  - ${_ENV}
-#  - --credential
-#  - tool-credential.json
-#  - deploy_invoicing_pipeline
+- name: 'gcr.io/$PROJECT_ID/nomulus-tool:latest'
+  args:
+  - -e
+  - ${_ENV}
+  - --credential
+  - tool-credential.json
+  - deploy_invoicing_pipeline
 # Save the deployed tag for the current environment on GCS. Because of b/137891685
 # which causes the for-loop in the next step to fail, this may not be the last step.
 # TODO(weiminyu): do this in last step.