chore: zammad (#408)

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Author: github-actions[bot]

zammad/Chart.yaml

@@ -1,7 +1,7 @@
 apiVersion: v2
 name: zammad
-version: 16.0.3
-appVersion: 7.0.0-0018
+version: 16.0.4
+appVersion: 7.0.0-0021
 description: Zammad is a web based open source helpdesk/customer support system with many features to manage customer communication via several channels like telephone, facebook, twitter, chat and e-mails.
 home: https://zammad.org
 icon: https://raw.githubusercontent.com/zammad/zammad-documentation/main/images/zammad_logo_600x520.png