[BUG] Dispute webhooks for Airwallex not handled

### Bug Description

Webhooks for disputes that expects `response` is not handled

### Expected Behavior

We're expected to receive when dispute is triggered.

### Actual Behavior

No webhook is being received as referenceId goes missing

### Steps To Reproduce

1. Trigger a dispute payment
2. You won't get webhook that has the disputeId

### Context For The Bug

### Environment

Are you using hyperswitch hosted version? Yes

paymentId: `pay_36mVfSf23kkDNlNQm855`

### Have you spent some time checking if this bug has been raised before?

- [X] I checked and didn't find a similar issue

### Have you read the Contributing Guidelines?

- [X] I have read the [Contributing Guidelines](https://github.com/juspay/hyperswitch/blob/main/docs/CONTRIBUTING.md)

### Are you willing to submit a PR?

No, but I'm happy to collaborate on a PR with someone else