Rust

Add MSRV minimal versions in CI #262

Job	Run time
Style Checks (rustfmt)	12s
Unit and Doc Tests (Rust MSRV on ubuntu-latest)	1s
Style Check (clippy)	51s
Code Coverage (stable/ubuntu-latest)	3m 41s
Unit and Doc Tests (Rust MSRV on windows-latest)	28s
Unit and Doc Tests (Rust MSRV on macOS-latest)	24s
Integration Tests (Rust Stable with curl-client)	1m 3s
README Format Check	24s
Unit and Doc Tests (Rust Stable on ubuntu-latest)	50s
Integration Tests (Rust Stable with h1-client)	1m 4s
Unit and Doc Tests (Rust Stable on windows-latest)	1m 34s
Integration Tests (Rust Stable with h1-client-rustls)	1m 13s
Unit and Doc Tests (Rust Stable on macOS-latest)	11s
Integration Tests (Rust Stable with hyper-client)	1m 6s
Unit and Doc Tests (Rust Beta on ubuntu-latest)	1m 6s
Integration Tests (Rust Stable with reqwest-client-rustls)	1m 2s
Unit and Doc Tests (Rust Beta on windows-latest)	1m 3s
Integration Tests (Rust Stable with reqwest-client-native-tls)	1m 2s
Unit and Doc Tests (Rust Beta on macOS-latest)	17s
Integration Tests (Rust Stable with reqwest-client-native-tls-vendored)	2m 16s
Unit and Doc Tests (Rust Nightly on ubuntu-latest)	1m 3s
Unit and Doc Tests (Rust Nightly on windows-latest)	38s
Unit and Doc Tests (Rust Nightly on macOS-latest)	21s
pages	0s
	21m 50s

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