onlyoffice: 8.3.0 -> 9.4.0 [MAJOR]

Campaign 7 catalog sweep.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Nn3VgQk9iwEGgyx6QJ2NvE

templates/onlyoffice/docker-compose.yml

@@ -9,7 +9,7 @@
 
 services:
   onlyoffice:
-    image: onlyoffice/documentserver:8.3.0
+    image: onlyoffice/documentserver:9.4.0
     container_name: onlyoffice
     restart: unless-stopped
     environment: