worker: use engine-provided deleter for `SharedArrayBuffer`s

Store the full information we have on a given `SharedArrayBuffer`,
and use the deleter provided by the JS engine to free the memory
when that is needed.

This fixes memory lifetime management for WASM buffers that are
passed through a `MessageChannel` (e.g. between threads).

PR-URL: https://github.com/nodejs/node/pull/25307


Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Tiancheng "Timothy" Gu <timothygu99@gmail.com>