Add label 'origin: cc_worker' to cc-worker's prom_scraper config (#510)

Author: svkrieger

jobs/cloud_controller_worker/templates/prom_scraper_config.yml.erb

@@ -5,4 +5,6 @@ instance_id: <%= spec.id || spec.index.to_s %>
 scheme: https
 server_name: "cc_worker_metrics"
 path: /metrics
+labels:
+  origin: cc_worker
 <% end -%>