metrics/influxdb: fix time ticker leaks (#26507)

metrics/influxdb/influxdb.go

@@ -101,6 +101,9 @@ func (r *reporter) run() {
 	intervalTicker := time.NewTicker(r.interval)
 	pingTicker := time.NewTicker(time.Second * 5)
 
+	defer intervalTicker.Stop()
+	defer pingTicker.Stop()
+
 	for {
 		select {
 		case <-intervalTicker.C:

metrics/influxdb/influxdbv2.go

@@ -62,6 +62,9 @@ func (r *v2Reporter) run() {
 	intervalTicker := time.NewTicker(r.interval)
 	pingTicker := time.NewTicker(time.Second * 5)
 
+	defer intervalTicker.Stop()
+	defer pingTicker.Stop()
+
 	for {
 		select {
 		case <-intervalTicker.C: