Do something about punycode deprecation warning

[bugarela]

From Node 21, one of our indirect dependencies (punycode) is deprecated. We should deal with that.

This is the warning that is shown when someone calls our CLI with node 21:

(node:2145150) [DEP0040] DeprecationWarning: The `punycode` module is deprecated. Please use a userland alternative instead.
(Use `node --trace-deprecation ...` to show where the warning was created)

[shonfeder]

These have become errors now, the debt collector came calling :)

[shonfeder]

We are pulling in the problematic use of punycode thru the node-fetch dependency, and hitting node-fetch/node-fetch#1797

This should be fixed in node-fetch v3, but there are some breaking API changes we'll have to account for.

[shonfeder]

Not only do we have breaking changes in the node-fetch that fixes this depreciation issue, but also typescript compatibility has been lost with the latest version, node-fetch/node-fetch#1617

Dropping this dependency would be the best option, I think.