[VOL-3798] : voltha helm chart change to enable/disable metrics for openonu-go

Change-Id: If03b10b07c2afa687415889aed493d973854175a
diff --git a/voltha-adapter-openonu/Chart.yaml b/voltha-adapter-openonu/Chart.yaml
index b4ce283..cd423f8 100644
--- a/voltha-adapter-openonu/Chart.yaml
+++ b/voltha-adapter-openonu/Chart.yaml
@@ -14,7 +14,7 @@
 ---
 apiVersion: "v1"
 name: "voltha-adapter-openonu"
-version: "2.7.3"
+version: "2.7.4"
 description: "A Helm chart for Voltha OpenONU Adapter"
 keywords:
   - "onf"