chore: hide internal features #1751

Job	Run time
Check Style	7s
linux / nightly	1m 17s
MSRV	2m 5s
Android	30s
linux / stable	47s
unstable features	3s
linux / beta	59s
WASM	1m 5s
macOS / stable	1m 53s
windows / stable-x86_64-msvc	4m 0s
windows / stable-i686-msvc	3m 57s
windows / stable-x86_64-gnu	8m 39s
windows / stable-i686-gnu	8m 10s
feat.: default-tls disabled	1m 5s
feat.: rustls-tls	55s
feat.: rustls-tls-manual-roots	57s
feat.: rustls-tls-native-roots	56s
feat.: native-tls	57s
feat.: default-tls and rustls-tls	53s
feat.: cookies	1m 0s
feat.: blocking	1m 2s
feat.: gzip	1m 4s
feat.: brotli	1m 1s
feat.: deflate	58s
feat.: json	1m 5s
feat.: multipart	58s
feat.: stream	1m 2s
feat.: socks/default-tls	56s
feat.: socks/rustls-tls	1m 14s
feat.: trust-dns	1m 12s
Docs	1m 45s
CI is green	1s
	52m 33s

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