chore(etcd-backup): indicate update does not contain security updates

Co-authored-by: Lucas <[email protected]>

Author: cfi2017

charts/kubernetes-etcd-backup/Chart.yaml

@@ -18,7 +18,7 @@ maintainers:
     email: [email protected]
     url: https://adfinis.com
 annotations:
-  artifacthub.io/containsSecurityUpdates: "true"
+  artifacthub.io/containsSecurityUpdates: "false"
   artifacthub.io/changes: |
     - kind: fixed
       description: "disallow concurrent job runs"