Data Action HTTP POST timeout after 3s despite 5s response time

I can’t seem to figure out why my Genesys Cloud Data Action calling the PagerDuty Events API v2 fails with a 504 Gateway Timeout when the external endpoint responds in roughly 5 seconds. The Data Action configuration shows a hard 3-second timeout limit that I cannot seem to override via the UI or the /api/v2/analytics/data-actions endpoint. Here is the JSON payload I am sending: {“routing_key”: “abc”, “event_action”: “trigger”, “payload”: {“summary”: “SLA Breach”}}. Is there a specific header or SDK method to increase this timeout threshold beyond the default 3 seconds?