test: shell out to `rmdir` first on Windows

cmd's `rmdir` is hardened to deal with Windows edge cases, like
lingering processes, indexing, and AV checks. So we give it a try first.

* Added `opts = { spawn = true }` to opt-out of spawning
* test-pipeconnectwrap.js - spawning messes up async_hooks state

PR-URL: https://github.com/nodejs/node/pull/28035


Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Sam Roberts <vieuxtech@gmail.com>