Try to remove punycode warning from jbrowse CLI

[cmdcolin]

Node 21+ prints a warning on usage of any jbrowse cli about punycode being deprecated...

[cmdcolin]

this is related to using whatwg-url package which is depended on by node-fetch@2 which is used by jbrowse-cli

it is somewhat difficult to remedy this though

possible options

a) use something other than node-fetch. might be most promising, but might want to retain the proxy support that a user asked for (see fetchWithProxy)
b) use node-fetch@3, but this is pure-esm and is tricky to enable properly
c) use native node.js fetch, shipped in v18, but this does not have integration with proxy-agent (TooTallNate/proxy-agents#239)