http_parser is unmaintained

[itrofimow]

See nodejs/http-parser#522

There is https://github.com/nodejs/llhttp with very similar API (although llhttp is missing the URL parser functions from http-parser), so we could switch to it pretty easily, and it also promises massive perf improvements

[apolukhin]

Sound great. But we have to keep supporting http_parser as long as most of the distros do not get support for the llhttp

[itrofimow]

We can vendor it in third_party, and thats what most people who switched do - llhttp has c sources in releases .tar since v6 or smth, so it should be as easy as FetchContent: https://github.com/nodejs/llhttp#using-with-cmake

[itrofimow]

Addressed by e6b635c