Update IC version in helm chart

Author: LorcanMcVeigh

deployments/helm-chart/values.yaml

@@ -26,7 +26,7 @@ controller:
     repository: nginx/nginx-ingress
 
     ## The tag of the Ingress controller image.
-    tag: "edge"
+    tag: "1.7.0"
 
     ## The pull policy for the Ingress controller image.
     pullPolicy: IfNotPresent