[VOL-5527] enhance nni stats

Change-Id: Iaf98eac1c0e4efb12a866187e6e191848272c74f
Signed-off-by: Akash Reddy Kankanala <akash.kankanala@radisys.com>
diff --git a/go.mod b/go.mod
index bbf47ac..c5eabe5 100644
--- a/go.mod
+++ b/go.mod
@@ -9,7 +9,7 @@
 	github.com/grpc-ecosystem/go-grpc-middleware v1.4.0
 	github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0
 	github.com/opencord/voltha-lib-go/v7 v7.7.1
-	github.com/opencord/voltha-protos/v5 v5.6.7
+	github.com/opencord/voltha-protos/v5 v5.6.8
 	github.com/prometheus/client_golang v1.23.2
 	github.com/stretchr/testify v1.11.1
 	go.etcd.io/etcd/tests/v3 v3.6.5