fix: use Hinln/ARTEX for authenticated release updates

docker-compose.yml

@@ -21,6 +21,7 @@ services:
         condition: service_healthy
     environment:
       ARTEX_PG_DSN: postgres://${POSTGRES_USER:-artex}:${POSTGRES_PASSWORD}@postgres:5432/${POSTGRES_DB:-artex}?sslmode=disable
+      ARTEX_UPDATE_GITHUB_TOKEN: ${ARTEX_UPDATE_GITHUB_TOKEN:-}
       ANTHROPIC_API_KEY: ${ANTHROPIC_API_KEY:-}
       OPENAI_API_KEY: ${OPENAI_API_KEY:-}
       ARTEX_LLM_PROVIDER: ${ARTEX_LLM_PROVIDER:-}