git: openjdk/jdk-sandbox: json: microbench test converted to preview

[duke]

Changeset: 46218ca7
Branch: json
Author:    Naoto Sato <naoto.sato at oracle.com>
Date:      2025-10-24 17:36:18 +0000
URL:       https://git.openjdk.org/jdk-sandbox/commit/46218ca751a55202e7c1e1cbb32e4cf7f7c0ac27

microbench test converted to preview

= test/micro/org/openjdk/bench/java/util/json/Parse.java