Support for brotli compression

[crystalfp]

The package is used inside Pactum and do not access brotli compressed files.

I know it is an indirect issue (the culprit is phin or pactum?), but I'm trying to collect more evidence on the problem.

Environment details

• Programming language: Javascript
• OS: Windows 11
• Language runtime version: Node 18.11.0
• Package version: 3.6.0

Steps to reproduce

1. Access http://localhost/ where the root page is compressed with brotli, that is, the file to access is index.html.br
2. The server respond with 404
3. Now access http://localhost/index.html.br
4. The server find the file but return the compressed binary content.
5. Use an external brotli decompressor and the returned data is indeed the index.html content