refactor(community-cli-plugin): use node builtin fetch

[jbroma]

Summary:

Removed node-fetch in favour of node builtin fetch to get rid of the deprecated punycode warning when using Node 22.

@react-native/community-cli-plugin already requires Node >= 18 where it was made available by default (without --experimental-fetch flag).

This change is similar to the one made in #45227

Changelog:

[GENERAL] [CHANGED] - Drop node-fetch in favor of Node's built-in fetch from undici in @react-native/community-cli-plugin

Test Plan:

tests pass

[thymikee]

👍. Any way we can help advance this?