Update CHANGELOG.md (#13446)

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

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

CHANGELOG.md

@@ -438,6 +438,12 @@ Exercise vigilance regarding copycat or coat-tailing sites that seek to exploit
     - Graylog: set vm.max_map_count on host for OpenSearch [@MickLesk](https://github.com/MickLesk) ([#13441](https://github.com/community-scripts/ProxmoxVE/pull/13441))
     - Koillection: ensure newline before appending to .env.local [@MickLesk](https://github.com/MickLesk) ([#13440](https://github.com/community-scripts/ProxmoxVE/pull/13440))
 
+### 💾 Core
+
+  - #### 🔧 Refactor
+
+    - core: skip empty gateway value in network config [@MickLesk](https://github.com/MickLesk) ([#13442](https://github.com/community-scripts/ProxmoxVE/pull/13442))
+
 ## 2026-03-30
 
 ### 🆕 New Scripts