Update apiservice version

Apiservice crd with version v1beta1 is removed starting with kubernetes
version 1.22
Make sure to use stable version v1 from now on.

Author: phiphi282

helm/designate-certmanager-webhook/templates/apiservice.yaml

@@ -9,7 +9,7 @@ metadata:
     heritage: {{ .Release.Service }}
 data:
   apiservice.yaml: |
-    apiVersion: apiregistration.k8s.io/v1beta1
+    apiVersion: apiregistration.k8s.io/v1
     kind: APIService
     metadata:
       name: v1alpha1.acme.syseleven.de