Docker: Traefik 3.0 (#6401)

https://github.com/traefik/traefik/releases/tag/v3.0.0
https://doc.traefik.io/traefik/v3.0/migration/v2-to-v3/

Docker/freshrss/docker-compose-proxy.yml

@@ -7,7 +7,7 @@ volumes:
 services:
 
   traefik:
-    image: traefik:2.11
+    image: traefik:3.0
     container_name: traefik
     restart: unless-stopped
     logging: