async_hooks: ensure event after been emitted on runInAsyncScope

The exception handler user-defined will not automatically emit after
for the async resource.

Also removes a duplicated case
`test-emit-after-uncaught-exception-runInAsyncScope.js`
which is identical to test-emit-after-uncaught-exception.js.

Refs: https://github.com/nodejs/node/pull/30965
PR-URL: https://github.com/nodejs/node/pull/31784
Fixes: https://github.com/nodejs/node/issues/31783


Reviewed-By: Vladimir de Turckheim <vlad2t@hotmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>