Investigate V8 14.7 native queueMicrotask (--enable-queue-microtask) #32968

V8 14.7 ships a native implementation of queueMicrotask behind the --enable-queue-microtask flag. Uncaught exceptions from microtasks are sent to the isolate's message listeners.

Like other flagged features it's unavailable during snapshotting, so it's unclear whether it can be used in Deno directly. Worth investigating whether this could replace or simplify our current queueMicrotask implementation.

Ref: #32965 (comment)