chore(deps): update traefik docker tag to v2.11

Signed-off-by: Renovate Bot <[email protected]>

Author: renovate[bot]

hound/service/docker-compose.yml

@@ -4,7 +4,7 @@ version: '3.5'
 services:
   traefik:
     container_name: traefik
-    image: traefik:2.4
+    image: traefik:2.11
     restart: unless-stopped
     ports:
       - 80:80