test: update postmortem metadata test

This commit updates the following postmortem metadata constant:

- v8dbg_class_SharedFunctionInfo__internal_formal_parameter_count__int
  - Renamed: v8dbg_class_SharedFunctionInfo__internal_formal_parameter_count__uint16_t
  - V8 commit: https://github.com/v8/v8/commit/53d4dfc3771dda011ba95d0f825fabb83219ff51

PR-URL: https://github.com/nodejs/node/pull/21983


Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: Ujjwal Sharma <usharma1998@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>