* Add wroteRequest (waiting for new quic-go)
* Use XTLS/quic-go instead
* Client doesn't need `scMaxConcurrentPosts` anymore
* GotConn is available in H3
* `scMaxConcurrentPosts` -> `scMaxBufferedPosts` (server only, 30 by default)
Fixes https://github.com/XTLS/Xray-core/issues/4100