[zuul][tempest] Add sg_core_service_url to tempest conf

zuul.d/projects.yaml

@@ -19,6 +19,7 @@
             identity.v2_admin_endpoint_type: public
             service_available.ceilometer: true
             service_available.sg_core: true
+            telemetry.sg_core_service_url: "ceilometer.openstack.svc.cluster.local:3000"
      # NOTE(efoley): First step is to get ANY tempest jobs running to confirm a working config
       cifmw_tempest_tests_allowed: # need to see ciframwework roles that use these vars, to see how to enable telemetry
         - telemetry_tempest_plugin.scenario