New Slack Alert Payload Type - Add support for notifying team when push bypass delegated approval is required

[felickz]

https://github.blog/changelog/2024-06-17-webhook-support-for-push-protection-delegated-bypass-events/

• https://docs.github.com/en/enterprise-cloud@latest/webhooks/webhook-events-and-payloads?actionType=created#bypass_request_secret_scanning

• bypass_request_secret_scanning

  • created
  • response_dismissed
  • response_submitted
  • completed
  • cancelled

Some small changes vs alerts that the properties are under exemption_request parent vs alert