Logs action of closing an idle connection after timeout expires. (#9239)

Signed-off-by: Santiago Pericas-Geertsen <[email protected]>

webserver/webserver/src/main/java/io/helidon/webserver/HttpInitializer.java

@@ -229,6 +229,7 @@ public void initChannel(SocketChannel ch) {
                 @Override
                 public void userEventTriggered(ChannelHandlerContext ctx, Object evt) {
                     if (evt instanceof IdleStateEvent) {
+                        LOGGER.finer(() -> log("Closing idle connection on channel", ctx.channel()));
                         ctx.close();        // async close of idle connection
                     }
                 }