test: skip internet for test-npm-install

Disabling any internet-required features (namely audit and
update-notifer) in order for the test to work without an internet
connection.

- Fixes: https://github.com/nodejs/node/issues/36895

PR-URL: https://github.com/nodejs/node/pull/36933


Reviewed-By: Richard Lau <rlau@redhat.com>
Reviewed-By: Michael Dawson <midawson@redhat.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Myles Borins <myles.borins@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>