chore: upgrade to 2.9.4

compose.yml

@@ -1,6 +1,6 @@
 services:
   app:
-    image: n8nio/n8n:2.6.2
+    image: n8nio/n8n:2.9.4
     environment:
       - N8N_PERSONALIZATION_ENABLED
       - N8N_DIAGNOSTICS_ENABLED
@@ -27,7 +27,7 @@ services:
         - "traefik.http.routers.${STACK_NAME}.middlewares=${STACK_NAME}-redirect"
         - "traefik.http.middlewares.${STACK_NAME}-redirect.redirectscheme.scheme=https"
         - "traefik.http.middlewares.${STACK_NAME}-redirect.redirectscheme.permanent=true"
-        - "coop-cloud.${STACK_NAME}.version=3.1.0+2.6.2"
+        - "coop-cloud.${STACK_NAME}.version=3.1.0+2.9.4"
         - "backupbot.backup=true"
         - "backupbot.backup.path=/home/node/.n8n"