docs: correctly specifying which fields will be present in Webhook API responses

[iampava]

Request for updates in the documentation

• New Documentation
• Updates to Existing Documentation

I was looking at the Get all webhooks API: https://www.alchemy.com/docs/data/webhooks/webhooks-api-endpoints/notify-api-endpoints/team-webhooks and noticed that all fields can be nullable.

Is this intented? Can we add required in OpenAPI spec, since in version v3.1.0 not adding required means it can be optional?