test: adapt test-util-inspect to V8 9.3

Classes' "name" property is now installed between "length" and
"prototype".

Refs: https://github.com/v8/v8/commit/224b659cd40b6e11c71262b8a938c0c66cd9bba6

PR-URL: https://github.com/nodejs/node/pull/39469


Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>