lib: don't use `util.inspect()` internals

This makes sure the internal `stylize` function is not used to render
anything and instead just uses the regular inspect function in case
of reaching the maximum depth level.

PR-URL: https://github.com/nodejs/node/pull/24971
Refs: https://github.com/nodejs/node/issues/24765


Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Rich Trott <rtrott@gmail.com>