Introduces a new interface `RequestDetails` to abstract `Request`
providing access to request body and headers.
**BREAKING:** Replace `request: Request` with `request: RequestDetails` at `RequestValidator`.
**BREAKING:** Remove required field `router` at `HttpPostIngressEventPublisher.fromConfig`
and replace it with `bind(router: Router)`.
Additionally, the path prefix `/http` will be added inside `HttpPostIngressEventPublisher`.
Relates-to: PR #13931
Signed-off-by: Patrick Jungermann <Patrick.Jungermann@gmail.com>
Patrick Jungermann