Fix lint errors

Signed-off-by: Tomasz Pietrek <tomasz@nats.io>

pubsub/jetstream/metadata_test.go

@@ -60,9 +60,9 @@ func TestParseMetadata(t *testing.T) {
 				startTime:      time.Unix(1629328511, 0),
 				deliverAll:     true,
 				flowControl:    true,
-				ackWait:        time.Duration(2 * time.Second),
+				ackWait:        2 * time.Second,
 				maxDeliver:     10,
-				backOff:        []time.Duration{time.Duration(time.Millisecond * 500), time.Duration(time.Second * 2), time.Duration(time.Second * 10)},
+				backOff:        []time.Duration{time.Millisecond * 500, time.Second * 2, time.Second * 10},
 				maxAckPending:  5000,
 				replicas:       3,
 				memoryStorage:  true,