resolve deprecation

CHANGELOG.md

@@ -8,6 +8,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - Updated base kiali image to v1.40.1
 - Updated base kiali-operator image to v1.40.1
 - Updated base kiali-operator helm chart to v1.40.1
+- Updated VS to v1beta1 API version
 
 ## [1.39.0-bb.3] - 2021-09-28
 ### Added

chart/templates/bigbang/virtualservice.yaml

 {{- if .Values.istio.enabled }}
-apiVersion: networking.istio.io/v1alpha3
+apiVersion: networking.istio.io/v1beta1
 kind: VirtualService
 metadata:
   name: kiali