feat: add H3 client config support #2417

Job	Run time
Check Style	14s
unstable features	1m 9s
MSRV	54s
linux / nightly	1m 23s
WASM	1m 2s
Android	30s
linux / beta	48s
macOS / stable	47s
windows / stable-x86_64-msvc	3m 8s
windows / stable-x86_64-gnu	7m 8s
linux / stable	48s
feat.: default-tls disabled	47s
windows / stable-i686-gnu	7m 28s
feat.: rustls-tls	51s
feat.: rustls-tls-manual-roots	32s
windows / stable-i686-msvc	2m 54s
feat.: rustls-tls-no-provider	27s
feat.: rustls-tls-native-roots	48s
feat.: rustls-tls and rustls-tls-no-provider	32s
feat.: native-tls	54s
feat.: cookies	53s
feat.: default-tls and rustls-tls	56s
feat.: gzip	1m 0s
feat.: multipart	48s
feat.: blocking	1m 6s
feat.: socks/rustls-tls	57s
feat.: deflate	58s
feat.: socks/default-tls	48s
feat.: stream	59s
feat.: blocking only	58s
feat.: json	55s
feat.: zstd	1m 8s
feat.: hickory-dns	1m 9s
feat.: brotli	1m 6s
Docs	1m 49s
CI is green	2s
	48m 36s

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