updating voltha-lib-go for VOL-4994

Change-Id: I8bd2e59a5ec7cc05e143cfec7163aa0caf098475
diff --git a/go.mod b/go.mod
index b495c5c..1bdea8c 100644
--- a/go.mod
+++ b/go.mod
@@ -16,7 +16,7 @@
 	github.com/google/gopacket v1.1.17
 	github.com/looplab/fsm v0.2.0
 	github.com/opencord/omci-lib-go/v2 v2.2.3
-	github.com/opencord/voltha-lib-go/v7 v7.4.2
+	github.com/opencord/voltha-lib-go/v7 v7.4.3
 	github.com/opencord/voltha-protos/v5 v5.4.6
 	github.com/stretchr/testify v1.7.0
 	google.golang.org/grpc v1.44.0