chore(deps): update traefik docker tag to v3.6.12

Author: renovate[bot]

traefik/opencloud.yml

@@ -9,7 +9,7 @@ services:
       - "traefik.http.services.opencloud.loadbalancer.server.port=9200"
       - "traefik.http.routers.opencloud.${TRAEFIK_SERVICES_TLS_CONFIG}"
   traefik:
-    image: traefik:v3.6.11
+    image: traefik:v3.6.12
     # release notes: https://github.com/traefik/traefik/releases
     user: ${TRAEFIK_CONTAINER_UID_GID:-0:0}
     networks: