Rust

Add MSRV minimal versions in CI #266

Job	Run time
Style Check (clippy)	52s
README Format Check	1m 10s
Integration Tests (Rust Stable with curl-client)	1m 8s
Code Coverage (stable/ubuntu-latest)	2m 19s
Integration Tests (Rust Stable with h1-client)	1m 8s
Style Checks (rustfmt)	11s
Integration Tests (Rust Stable with h1-client-rustls)	1m 11s
Unit and Doc Tests (Rust MSRV on ubuntu-latest)	5s
Integration Tests (Rust Stable with hyper-client)	1m 13s
Unit and Doc Tests (Rust MSRV on windows-latest)	10s
Integration Tests (Rust Stable with reqwest-client-rustls)	1m 1s
Unit and Doc Tests (Rust MSRV on macOS-latest)	7s
Integration Tests (Rust Stable with reqwest-client-native-tls)	1m 2s
Unit and Doc Tests (Rust Stable on ubuntu-latest)	1m 1s
Integration Tests (Rust Stable with reqwest-client-native-tls-vendored)	2m 6s
Unit and Doc Tests (Rust Stable on windows-latest)	1m 42s
Unit and Doc Tests (Rust Stable on macOS-latest)	51s
Unit and Doc Tests (Rust Beta on ubuntu-latest)	1m 10s
Unit and Doc Tests (Rust Beta on windows-latest)	2m 0s
Unit and Doc Tests (Rust Beta on macOS-latest)	1m 2s
Unit and Doc Tests (Rust Nightly on ubuntu-latest)	55s
Unit and Doc Tests (Rust Nightly on windows-latest)	1m 55s
Unit and Doc Tests (Rust Nightly on macOS-latest)	1m 6s
pages	1s
	25m 26s

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