Copy failed message headers into an `ErrorMessage` produced by the `ExpressionEvaluatingRequestHandlerAdvice`

[artembilan]

See for more info: https://stackoverflow.com/questions/77955301/how-to-reply-to-a-gateway-from-an-error-channel-so-it-does-not-hang

Related issue is: #3984

See also: https://stackoverflow.com/questions/77955301/how-to-reply-to-a-gateway-from-an-error-channel-so-it-does-not-hang