add credentials to ml-service docker for migrations

docker-compose.yml

@@ -45,6 +45,9 @@ services:
       - DATABASE_URL=postgresql://${POSTGRES_USER}:${POSTGRES_PASSWORD}@postgres:5432/${POSTGRES_DB}
       - PYTHONUNBUFFERED=1
       - API_KEY=${API_KEY}
+      - POSTGRES_USER=${POSTGRES_USER}
+      - POSTGRES_PASSWORD=${POSTGRES_PASSWORD}
+      - POSTGRES_DB=${POSTGRES_DB}
     restart: unless-stopped
     depends_on:
       postgres: