url: exit early when : delimiter is seen in hostname

This aligns with an upstream spec change.

PR-URL: https://github.com/nodejs/node/pull/38742
Fixes: https://github.com/nodejs/node/issues/38710


Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Darshan Sen <raisinten@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>