fix: Support streaming HTTP responses (#2956)

* all: Upgrade listenerutil dependency

The new listenerutil implements http.Flusher, which is necessary
for streaming responses from the grpc-gateway to work.

* daemon/controller: Remove newline delimiter in streaming responses

The default gRPC-Gateway HTTPBody marshaler uses newlines
as a delimiter. This introduces newlines in our streamed responses.
Wrapping the default marshaler lets us define a nil delimiter, which
ensures our streaming responses are unaffected by the server side
chunking.

internal/daemon/controller/handler.go

@@ -80,7 +80,7 @@ func createMuxWithEndpoints(c *Controller, props HandlerProperties) (http.Handle
 		return p == uiPath
 	}
 
-	return http.HandlerFunc(mux.ServeHTTP), isUiRequest, nil
+	return mux, isUiRequest, nil
 }
 
 // apiHandler returns an http.Handler for the services. This can be used on