Update default image value in webhook chart

This change updates the default image value in the webhook chart
from newton to wallaby.

Change-Id: I712e0b7de4483474ebdec0997d5d6e24e02e8a44

kubernetes-keystone-webhook/Chart.yaml

@@ -15,7 +15,7 @@ apiVersion: v1
 appVersion: v0.2.0
 description: OpenStack-Helm Kubernetes keystone webhook
 name: kubernetes-keystone-webhook
-version: 0.1.5
+version: 0.1.6
 home: https://github.com/kubernetes/cloud-provider-openstack
 sources:
   - https://opendev.org/openstack/openstack-helm-infra

kubernetes-keystone-webhook/values.yaml

@@ -22,7 +22,7 @@ labels:
 images:
   tags:
     kubernetes_keystone_webhook: docker.io/k8scloudprovider/k8s-keystone-auth:v1.19.0
-    scripted_test: docker.io/openstackhelm/heat:newton-ubuntu_xenial
+    scripted_test: docker.io/openstackhelm/heat:wallaby-ubuntu_focal
     dep_check: quay.io/airshipit/kubernetes-entrypoint:v1.0.0
     image_repo_sync: docker.io/library/docker:17.07.0
   pull_policy: IfNotPresent

releasenotes/notes/kubernetes-keystone-webhook.yaml

@@ -6,4 +6,5 @@ kubernetes-keystone-webhook:
   - 0.1.3 Remove Kibana source reference
   - 0.1.4 Use full image ref for docker official images
   - 0.1.5 Update htk requirements
+  - 0.1.6 Update default image value to Wallaby
 ...