skipper/hostname-credentials-controller: disable retry

Do not retry cronjob on failure once (backoffLimit) but wait one minute until next scheduled time.
E.g. it makes no sense to retry in case of `429 Too Many Requests` from API server.

Signed-off-by: Alexander Yastrebov <[email protected]>

Author: AlexanderYastrebov

cluster/manifests/skipper/hostname-credentials-controller.yaml

@@ -109,7 +109,7 @@ spec:
   jobTemplate:
     spec:
       activeDeadlineSeconds: 30
-      backoffLimit: 1
+      backoffLimit: 0
       template:
         metadata:
           labels: