Missing Actions for Invoice Ninja Node v5

It would help if there was a node for:

Node already exists

My use case:

Invoice Ninja provide Webhook Callback actions for creation and for update, therefor the category could be updated

Any resources to support this?

Link to external documentation

Are you willing to work on this?

I would, if someone can give me a brief overview, how and what to expend for this request.

Current Workaround

It already works, if you change the webhook event type after creation to n8n. N8n will show, that the type is for exampe created_invoice and not updated_invoice, but it works. But it would be great, if this option is availabe by default.