indexer: fix metrics

go/indexer/metrics/metrics.go

@@ -43,7 +43,7 @@ func NewMetrics(monitoredTokens map[string]string) *Metrics {
 
 	return &Metrics{
 		SyncHeight: promauto.NewGaugeVec(prometheus.GaugeOpts{
-			Name:      "l1_sync_height",
+			Name:      "sync_height",
 			Help:      "The max height of the indexer's last batch of L1 blocks.",
 			Namespace: metricsNamespace,
 		}, []string{
@@ -118,7 +118,7 @@ func (m *Metrics) SetL1SyncHeight(height uint64) {
 }
 
 func (m *Metrics) SetL2SyncHeight(height uint64) {
-	m.SyncHeight.WithLabelValues("l1").Set(float64(height))
+	m.SyncHeight.WithLabelValues("l2").Set(float64(height))
 }
 
 func (m *Metrics) RecordDeposit(addr common.Address) {