Fix config editor when using HTTPS

Fixes quarkusio#29431

This is a workaround though. The core of the problem is that when in
HTTPS, event.request().absoluteURI() returns an HTTP url, which is wrong
and leads to the redirect not working.

(cherry picked from commit e2572f4)

extensions/vertx-http/dev-console-runtime-spi/src/main/java/io/quarkus/devconsole/runtime/spi/DevConsolePostHandler.java

@@ -75,7 +75,7 @@ public void run() {
     protected void actionSuccess(RoutingContext event) {
         if (!event.response().ended()) {
             event.response().setStatusCode(HttpResponseStatus.SEE_OTHER.code()).headers()
-                    .set(HttpHeaderNames.LOCATION, event.request().absoluteURI());
+                    .set(HttpHeaderNames.LOCATION, event.request().uri());
             event.response().end();
         }
     }