Update n8n deployment to use latest version

- Changed from pinned version 1.86.1 to latest
- Requires OpenLiteSpeed binaries with Origin header forwarding support
- Compatible with n8n 1.87.0+ which has strict Origin validation

Note: This requires the OpenLiteSpeed binary that includes the Origin
header forwarding patch in the proxy module. The patch is available
in the CyberPanel OpenLiteSpeed distribution.

plogical/DockerSites.py

@@ -1353,7 +1353,7 @@ services:
         }
 
         n8n_config = {
-            'image': 'docker.n8n.io/n8nio/n8n:1.86.1',
+            'image': 'docker.n8n.io/n8nio/n8n',
             'user': 'root',
             'healthcheck': {
                 'test': ["CMD", "wget", "--spider", "http://localhost:5678"],