actuate endpoint "actuator/serviceregistry" return object type error

[guerlab]

Describe the bug
env: Spring cloud commons 3.1.0

when use webflux, this actuate endpoint return body like this

{
"body": "UP",
"headers": {},
"statusCode": "OK",
"statusCodeValue": 200
}

but use webmvc, this actuate endpoint return body like this

UP

because org.springframework.boot.actuate.endpoint.web.reactive.AbstractWebFluxEndpointHandlerMapping#toResponseEntity() method judge response is WebEndpointResponse instance

private ResponseEntity<Object> toResponseEntity(Object response) 
	if (!(response instanceof WebEndpointResponse)) {
		return new ResponseEntity<>(response, HttpStatus.OK);
	}
	WebEndpointResponse<?> webEndpointResponse = (WebEndpointResponse<?>) response;
	MediaType contentType = (webEndpointResponse.getContentType() != null)
			? new MediaType(webEndpointResponse.getContentType()) : null;
	return ResponseEntity.status(webEndpointResponse.getStatus()).contentType(contentType)
			.body(webEndpointResponse.getBody());
}

and in webmvc environment， org.springframework.boot.actuate.endpoint.web.servlet.AbstractWebMvcEndpointHandlerMapping#handleResult method judge response is WebEndpointResponse instance too.

private Object handleResult(Object result, HttpMethod httpMethod) {
	if (result == null) {
		return new ResponseEntity<>(
				(httpMethod != HttpMethod.GET) ? HttpStatus.NO_CONTENT : HttpStatus.NOT_FOUND);
	}
	if (!(result instanceof WebEndpointResponse)) {
		return result;
	}
	WebEndpointResponse<?> response = (WebEndpointResponse<?>) result;
	MediaType contentType = (response.getContentType() != null) ? new MediaType(response.getContentType())
			: null;
	return ResponseEntity.status(response.getStatus()).contentType(contentType).body(response.getBody());
}

So, to fix this bug, need change org.springframework.cloud.client.serviceregistry.endpoint.ServiceRegistryEndpoint.
change setStatus(String status) and getStatus() method return type to WebEndpointResponse

Sample
If possible, please provide a test case or sample application that reproduces
the problem. This makes it much easier for us to diagnose the problem and to verify that
we have fixed it.