support compress request body #2715

Job	Run time
Rustfmt and clippy	46s
Test (x86_64-unknown-linux-gnu, ubuntu-latest, --features=native-tls)	45s
Test (x86_64-unknown-linux-gnu, ubuntu-latest, --no-default-features --features=native-tls,online...	40s
Test (x86_64-apple-darwin, macos-13, --features=native-tls)	1m 13s
Test (aarch64-apple-darwin, macos-14, --features=native-tls)	1m 10s
Test (x86_64-pc-windows-msvc, windows-latest, --features=native-tls)	1m 24s
Test (x86_64-unknown-linux-musl, ubuntu-latest, true)	1m 8s
Test (aarch64-unknown-linux-musl, ubuntu-latest, true, -- --test-threads=4)	1m 56s
Test (arm-unknown-linux-gnueabihf, ubuntu-latest, true, -- --test-threads=4)	1m 56s
	10m 58s

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