feat!: Migrate to `fetch`

[danielbankhead]

As we plan to support multiple environments and runtimes it makes sense to migrate from node-fetch to the Fetch API. Transitioning this library to a interface on top of fetch provides a ton of flexibility and will greatly decrease package size.

Additionally:

• Update Github "about" section to:

An HTTP request client that provides a lightweight interface on top of `fetch`.

[unilynx]

This will also fix googleapis/gaxios#640 and the deprecation warning reported by gaxios in node 22.1+

[jordanebelanger]

This related ticket was closed in August 2024 googleapis/nodejs-storage#2356

Any update on this? It would notably fix a BUN compatibility issue with gziped files (they get decompressed twice for some reason under bun). @sofisl

[dbartholomae]

Looking forward to this as well, the punycode deprecation warning is very noisy.

[manucorporat]

Looking forward for this!