build,win: propagate error codes in vcbuild

Don't exit vcbuild with error code 0 when cctest fails.

PR-URL: https://github.com/nodejs/node/pull/30724
Refs: https://github.com/nodejs/build/issues/1996


Reviewed-By: Rod Vagg <rod@vagg.org>
Reviewed-By: Sam Roberts <vieuxtech@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>