fetch raw bytes without decompressing (and sending accept-encoding)

This would solve...

Something that node-fetch have had is the possibility to avoid decompressing the body while also sending out accept-encoding. why would this be useful? if you make a request to abc.com on the behalf of a client (like in a proxy) and it respond with a content-length and a content-encoding then you wish to simply just send back all this response headers and pipe the data to back the client. but content-length will be a missmatch b/c the content-length will match the compressed size and what you are actually piping back to the client will be the uncompressed size

The implementation should look like...

I have also considered...

Additional context

node-fetch has compress: true but if i could rename it, then it would be decompressResponseBody: boolean and default that to true

Start by reviewing Undici's existing response decompression behavior and comparing it with node-fetch's compress option. Define how callers would request raw compressed bytes while still sending accept-encoding, including the expected handling of content-length and content-encoding; the work is done when that behavior is specified and covered by tests.