Fixed flaky test testUpload_Multipart().

Signed-off-by: Simone Bordet <simone.bordet@gmail.com>

jetty-webapp/src/test/java/org/eclipse/jetty/webapp/HugeResourceTest.java

@@ -271,6 +271,7 @@ public class HugeResourceTest
         multipart.addFilePart(name, filename, new PathContentProvider(inputFile), null);
 
         URI destUri = server.getURI().resolve("/multipart");
+        client.setIdleTimeout(90_000);
         Request request = client.newRequest(destUri).method(HttpMethod.POST).content(multipart);
         ContentResponse response = request.send();
         assertThat("HTTP Response Code", response.getStatus(), is(200));