Got: try undici http client

[rifler]

What problem are you trying to solve?

speed improvement

Describe the feature

use new http/1.1 client https://github.com/nodejs/undici, which is faster than builtin http

original tweet - https://twitter.com/matteocollina/status/1298148085210775553

Checklist

• [x] I have read the documentation and made sure this feature doesn't already exist.

[ghermeto]

I might be able to help with that. We are discussing how Undici fits in the long term HTTP technical plans in the next web-server-frameworks team meeting. If the interface will be kept I can implement it.

cc/ @mmarchini