This adds an API to dynamically enable built-in proxy support
for all of fetch() and http.request()/https.request(), so
that users do not have to be aware of them all and configure them
one by one.
PR-URL: https://github.com/nodejs/node/pull/60953
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Tim Perry <pimterry@gmail.com>
