[FEATURE]Additional credential passthrough for webhook calls

[DustinEagar]

Is your feature request related to a problem? Please describe.

I would like to leverage the Argilla webhooks feature to build functionality for an auxiliary application supporting my organization's Argilla deployment, which is deployed on a private organization space on Huggingface.

Connections to Argilla servers deployed in this manner via the SDK require the user to pass a Huggingface token. Currently, the webhook call made by the server does not support any custom configuration to add security headers, which prevents passthrough of the HF credential. This appears to prevent the use of the webhooks feature on Argilla deployments hosted in private HF spaces.

Describe the solution you'd like

Support for inclusion of Huggingface tokens in webhook calls, or some more general approach that enables webhook authentication for private Huggingface spaces

Describe alternatives you've considered

• Deploy Argilla to a public HF space (not feasible for my org)
• Self-host Argilla (cost and effort not justified just for this feature)

Additional context

No response