chore: hide internal features #1599

Job	Run time
Check Style	32s
Docs	1m 41s
Android	34s
MSRV	1m 26s
linux / nightly	1m 31s
linux / stable	59s
unstable features	31s
WASM	1m 5s
linux / beta	1m 5s
macOS / stable	3m 56s
windows / stable-x86_64-msvc	4m 30s
windows / stable-i686-msvc	3m 44s
windows / stable-x86_64-gnu	4m 37s
windows / stable-i686-gnu	4m 27s
feat.: default-tls disabled	1m 8s
feat.: rustls-tls	1m 12s
feat.: rustls-tls-manual-roots	1m 4s
feat.: native-tls	1m 12s
feat.: default-tls and rustls-tls	1m 8s
feat.: cookies	1m 12s
feat.: blocking	1m 27s
feat.: gzip	1m 6s
feat.: brotli	1m 7s
feat.: deflate	1m 7s
feat.: json	1m 8s
feat.: multipart	1m 8s
feat.: stream	1m 18s
feat.: socks/default-tls	1m 5s
feat.: socks/rustls-tls	1m 35s
feat.: trust-dns	1m 11s
CI is green	2s
	49m 48s

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