Development server webhook not triggered on failed requests #410

Describe the bug
When a request failed (i.e raised an error on the handler) the webhook is not triggered compared to the cloud version

To Reproduce
Steps to reproduce the behavior:

1. Create a request on /run on local development
2. Call /status/:id to execute the request

Expected behavior
Webhook must be called with a status FAILED.

Screenshots
See #409 for the sample payload of the local development server.

Desktop (please complete the following information):

• OS: Windows 10
• SDK Version: 1.7.9
• Browser N/A
• Version N/A