[FR] DNS-over-HTTP/3

**Current behavior**
Currently there's no native support for DNS-over-HTTP/3. 

**Describe the desired feature**
I'd like there to be native support for DNS-over-HTTP/3.

**Potential use-case**
As there was an effort to implement DNS-over-QUIC, it'd be great to hit the _trifecta_ in UDP as well.