Architect HTTP Data Action timing out at 3s

Architect & Flows
1

I have an HTTP Data Action in Architect calling our internal CRM endpoint. The response time is hovering around 4-5 seconds. The action fails every time with a timeout error. I checked the properties and the timeout is hardcoded to 3000ms. How do I increase this limit in the JSON config? The current payload looks like this:

{
 "actionType": "http",
 "url": "https://api.internal-crm.com/lookup",
 "timeout": 3000,
 "method": "GET"
}

I’ve tried changing it to 5000 locally but it reverts or throws a validation error when I save the flow.