Bump actions/cache from 3 to 4 (#145) #229

Job	Run time
Style Checks (rustfmt)	11s
Style Check (clippy)	1m 34s
Code Coverage (stable/ubuntu-latest)	1m 36s
README Format Check	1m 8s
Integration Tests (Rust Stable with curl-client)	51s
Integration Tests (Rust Stable with h1-client)	1m 1s
Integration Tests (Rust Stable with h1-client-rustls)	1m 10s
Unit and Doc Tests (Rust MSRV on ubuntu-latest)	29s
Integration Tests (Rust Stable with hyper-client)	54s
Unit and Doc Tests (Rust MSRV on windows-latest)	1m 29s
Integration Tests (Rust Stable with reqwest-client-rustls)	1m 40s
Unit and Doc Tests (Rust MSRV on macOS-latest)	53s
Integration Tests (Rust Stable with reqwest-client-native-tls)	37s
Unit and Doc Tests (Rust Stable on ubuntu-latest)	1m 11s
Integration Tests (Rust Stable with reqwest-client-native-tls-vendored)	1m 36s
Unit and Doc Tests (Rust Stable on windows-latest)	1m 36s
Unit and Doc Tests (Rust Stable on macOS-latest)	38s
Unit and Doc Tests (Rust Beta on ubuntu-latest)	22s
Unit and Doc Tests (Rust Beta on windows-latest)	57s
Unit and Doc Tests (Rust Beta on macOS-latest)	56s
Unit and Doc Tests (Rust Nightly on ubuntu-latest)	31s
Unit and Doc Tests (Rust Nightly on windows-latest)	1m 19s
Unit and Doc Tests (Rust Nightly on macOS-latest)	39s
pages	9s
	23m 27s

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