Fix: new success always false

A new posted job don't have any success value. It should be considered
as always true, as if the exporter sees it from the event queue, it
means the job has been successfully posted.

internal/metrics/metrics.go

@@ -60,7 +60,7 @@ func ExposeMetrics(ctx context.Context, eventChan chan events.SaltEvent) {
 			switch event.Type {
 			case "new":
 				state := event.ExtractState()
-				newJobCounter.WithLabelValues(event.Data.Fun, state, strconv.FormatBool(event.Data.Success)).Inc()
+				newJobCounter.WithLabelValues(event.Data.Fun, state, "true").Inc()
 				expectedResponsesNumber.WithLabelValues(event.Data.Fun, state).Add(float64(event.TargetNumber))
 			case "ret":
 				state := event.ExtractState()