Fix default origin port in ReactorClientHttpConnector

This commit ensures that a valid port is given to the underlying Netty
client when no port is defined in the URL itself.

By default, port 80 is used by the Reactor Netty client.

Issue: SPR-14477

spring-web/src/main/java/org/springframework/http/client/reactive/ReactorClientHttpConnector.java

@@ -38,7 +38,7 @@ public class ReactorClientHttpConnector implements ClientHttpConnector {
 	public Mono<ClientHttpResponse> connect(HttpMethod method, URI uri,
 			Function<? super ClientHttpRequest, Mono<Void>> requestCallback) {
 
-		return reactor.io.netty.http.HttpClient.create(uri.getHost(), uri.getPort())
+		return reactor.io.netty.http.HttpClient.create(uri.toString())
 				.request(io.netty.handler.codec.http.HttpMethod.valueOf(method.name()),
 						uri.toString(),
 						httpClientRequest -> requestCallback