fix: set --providers.docker.network=${NETWORK}

this will make traefik look for containers inside its own network
which will prevent accessibility issues in cases when traefik tries to
access containers outside of its own network, since our setup is against
that kind of behavior

docker-compose.yml

@@ -11,6 +11,7 @@ services:
       - --entrypoints.websecure.address=:443
       - --log.level=${LOG_LEVEL}
       - --providers.docker
+      - --providers.docker.network=${NETWORK}
       - --providers.docker.exposedbydefault=false
       - --providers.file.filename=/etc/traefik/certs.toml
       - --api