Log Message:
www/xh: update to 0.22.0

[0.22.0] - 2024-04-13
Features
    Support http2-prior-knowledge, see #356 (@zuisong)
    Directly bind to interface name on supported platforms, see #359 (@ducaale)
    Enable stream when content-type is text/event-stream, see #360 (@zuisong)
    Decode utf-8 encoded string when formatting non-streaming JSON response, see \ 
#361 (@zuisong)

Other
    Upgrade to hyper v1, see #357 (@zuisong)
    Use serde-transcode to optimize JSON formatting, see #362 (@blyxxyz)