deps: update V8's postmortem script

This commit updates V8's postmortem metadata
generation script. This commit re-exposes the
v8dbg_class_UncompiledData__inferred_name__String
constant after it moved to Torque.

PR-URL: https://github.com/nodejs/node/pull/30020


Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>