Fix istio control plane ui template metric type mismatch issue (#6147)

Signed-off-by: NGao Hongtao <hanahmily@gmail.com>

CHANGES.md

@@ -48,6 +48,7 @@ Release Notes.
 * Adopt the [MAL](docs/en/concepts-and-designs/mal.md) in Envoy metrics service analyzer.
 * Fix the priority setting doesn't work of the ALS analyzers.
 * Fix bug that `endpoint-name-grouping.yml` is not customizable in Dockerized case.
+* Fix bug that istio version metric type on UI template mismatches the otel rule.
 
 #### UI
 * Fix un-removed tags in trace query.

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

@@ -41,9 +41,9 @@ templates:
                   "height": 350,
                   "entityType": "Service",
                   "independentSelector": false,
-                  "metricType": "REGULAR_VALUE",
+                  "metricType": "LABELED_VALUE",
                   "metricName": "meter_istio_pilot_version",
-                  "queryMetricType": "readMetricsValues",
+                  "queryMetricType": "readLabeledMetricsValues",
                   "chartType": "ChartArea"
                 },
                 {