Chg: update image tag in helm values to v2.8.0

Author: tip-automation

helm/values.yaml

@@ -8,7 +8,7 @@ fullnameOverride: ""
 images:
   owgwui:
     repository: tip-tip-wlan-cloud-ucentral.jfrog.io/owgw-ui
-    tag: v2.8.0-RC1
+    tag: v2.8.0
     pullPolicy: Always
 
 services: