lib: update executionAsyncId/triggerAsyncId comment

This commit updates the comment referring to the
executionAsyncId/triggerAsyncId pair being stored in a std::stack.

It looks like this was changed from std::stack to AliasedFloat64Array in
Commit 83e5215 ("async_hooks: use
typed array stack as fast path").

lib/internal/async_hooks.js

@@ -41,11 +41,11 @@ const {
   execution_async_resources,
   owner_symbol
 } = async_wrap;
-// Store the pair executionAsyncId and triggerAsyncId in a std::stack on
-// Environment::AsyncHooks::async_ids_stack_ tracks the resource responsible for
-// the current execution stack. This is unwound as each resource exits. In the
-// case of a fatal exception this stack is emptied after calling each hook's
-// after() callback.
+// Store the pair executionAsyncId and triggerAsyncId in a AliasedFloat64Array
+// in Environment::AsyncHooks::async_ids_stack_ which tracks the resource
+// responsible for the current execution stack. This is unwound as each resource
+// exits. In the case of a fatal exception this stack is emptied after calling
+// each hook's after() callback.
 const {
   pushAsyncContext: pushAsyncContext_,
   popAsyncContext: popAsyncContext_