url: handle windows drive letter in the file state

`C|` should not satisfy the condition to not copy
the base's path. It also synchronises WPT url test data
to verify the update in upstream.

PR-URL: https://github.com/nodejs/node/pull/12808
Refs: https://github.com/whatwg/url/pull/305
Refs: https://github.com/w3c/web-platform-tests/pull/5754


Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: Timothy Gu <timothygu99@gmail.com>