Fix the line chart problem of topology instance (#6489)

CHANGES.md

@@ -40,6 +40,7 @@ Release Notes.
 * Fix `DatabaseSlowStatementBuilder` statement maybe null.
 * Remove fields of parent entity in the relation sources. 
 * Save Envoy http access logs when error occurs.
+* Fix wrong `service_instance_sla` setting in the `topology-instance.yml`.
 
 #### UI
 * Update selector scroller to show in all pages.

oap-server/server-bootstrap/src/main/resources/ui-initialized-templates/topology-instance.yml

@@ -46,7 +46,7 @@ templates:
           "entityType": "ServiceInstance",
           "independentSelector": false,
           "metricType": "REGULAR_VALUE",
-          "metricName": "service_instance_resp_time",
+          "metricName": "service_instance_sla",
           "queryMetricType": "readMetricsValues",
           "chartType": "ChartLine",
           "unit": "%",
@@ -167,4 +167,4 @@ templates:
     # False means providing a basic template, user needs to add it manually.
     activated: true
     # True means wouldn't show up on the dashboard. Only keeps the definition in the storage.
-    disabled: false
+    disabled: false