Edge Function 504 Timeout on Concurrent Requests

// Successful
{"deployment_id": "abc_123", "status_code": 200, "execution_time_ms": 12317}

// Failed  
{"deployment_id": null, "status_code": 504, "execution_time_ms": 150235, "function_id": null}

EXECUTE FUNCTION supabase_functions.http_request (
  'https://project.supabase.co/functions/v1/my-function',
  'POST',
  '{"Content-type":"application/json"}',
  FORMAT('{"record":{"id":%s}}', NEW.id),
  '7500'
);