Update CHANGELOG.md (#9813)

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

Author: community-scripts-pr-app[bot]

CHANGELOG.md

@@ -21,6 +21,7 @@ Exercise vigilance regarding copycat or coat-tailing sites that seek to exploit
 
   - #### 🔧 Refactor
 
+    - Zammad: Various fixes [@tremor021](https://github.com/tremor021) ([#9805](https://github.com/community-scripts/ProxmoxVE/pull/9805))
     - Refactor: Zipline [@tremor021](https://github.com/tremor021) ([#9801](https://github.com/community-scripts/ProxmoxVE/pull/9801))
 
 ### 💾 Core