Merge pull request #74418 from danielqsj/duration

convert latency/latencies in metrics name to duration

test/integration/metrics/metrics_test.go

@@ -121,6 +121,6 @@ func TestApiserverMetrics(t *testing.T) {
 	}
 	checkForExpectedMetrics(t, metrics, []string{
 		"apiserver_request_total",
-		"apiserver_request_latency_seconds",
+		"apiserver_request_duration_seconds",
 	})
 }