doc: correct async_hooks sample outputs

Correct the output of async_hooks samples
* `TIMERWRAP` has been removed in #20894
* `console.log()` doesn't issue `TTYWRAP` nor `SIGNALWRAP`

I don't know which PR caused that `console.log()` is no longer using
`TTYWRAP` and `SIGNALWRAP`; I think it was between 8.4.0 and 8.5.0.

PR-URL: https://github.com/nodejs/node/pull/24050
Refs: https://github.com/nodejs/node/pull/20894


Reviewed-By: James M Snell <jasnell@gmail.com>