⬆️ Update ghcr.io/open-webui/open-webui Docker tag to v0.3.28

Author: Renovate Bot

docker/AI/docker-compose.yml

@@ -18,7 +18,7 @@ services:
               capabilities: [gpu]
 
   open-webui:
-    image: ghcr.io/open-webui/open-webui:0.3.26
+    image: ghcr.io/open-webui/open-webui:v0.3.28
     container_name: open-webui
     restart: unless-stopped
     networks: