Fix updating certificates in admission controller pod

On restart of admission controller pod old secret is
still can be present in environemnt, so make sure
secret is updated first.

Change-Id: Ia54529eb8034f4a39220d984736cc9ff1599372a
Related-Prod: https://mirantis.jira.com/browse/PRODX-50786

Author: mkarpin

charts/rockoon/templates/admission-controller-tls-secret.yaml

@@ -40,6 +40,9 @@ kind: Secret
 metadata:
   name: {{ include "rockoon.fullname" . }}-admission-tls
   namespace: {{ .Release.Namespace }}
+  annotations:
+    "helm.sh/hook": "pre-install,pre-upgrade"
+    "helm.sh/hook-weight": "3"
 data:
 {{- if empty .Values.admission.tls }}
   oac.crt: {{ $client.Cert  | b64enc }}