initail work on paid booking, improve validations

lib/validations/webhook.ts

@@ -2,7 +2,7 @@ import { withValidation } from "next-validations";
 
 import { _WebhookModel as Webhook } from "@calcom/prisma/zod";
 
-export const schemaWebhookBodyParams = Webhook.omit({ id: true });
+export const schemaWebhookBodyParams = Webhook.omit({ id: true }).partial();
 
 export const schemaWebhookPublic = Webhook.omit({});