add healthcheck property to rep_windows config template

jobs/rep_windows/templates/rep.json.erb

@@ -58,6 +58,7 @@
     disk_mb: p("diego.executor.disk_capacity_mb").to_s,
     enable_declarative_healthcheck: p("enable_declarative_healthcheck"),
     declarative_healthcheck_path: p("declarative_healthcheck_path"),
+    enable_healthcheck_metrics: p("enable_healthcheck_metrics"),
     enable_container_proxy: p("containers.proxy.enabled"),
     container_proxy_require_and_verify_client_certs: p("containers.proxy.require_and_verify_client_certificates"),
     container_proxy_trusted_ca_certs: p("containers.proxy.trusted_ca_certificates"),