Use `actions/checkout@v4` and `actions-rust-lang/setup-rust-toolchain@v1`. #1647

Job	Run time
Check lint and rustfmt	3m 45s
Build binary	7m 40s
Run tests (1.70, false)	9m 43s
Run tests (1.71, false)	10m 41s
Build binary (Windows)	14m 11s
Run tests (1.72, false)	9m 23s
Run tests (stable, false)	8m 36s
Semver: core-graphics	13m 22s
Run tests (beta, false)	9m 15s
Run tests (nightly, true)	8m 42s
Check if version changed	26s
Caching with feature config changed	50s
Semver: libp2p-dcutr 1.62.0 and libp2p-relay 0.14.0	3m 28s
Caching across rustdoc versions	3m 13s
Semver: libp2p-uds 0.37.0	1m 55s
Semver: libp2p-core 0.37.0	1m 28s
Semver: bevy_gltf v0.9.1	2m 32s
Semver: bevy_core v0.9.0	1m 19s
Semver: libp2p-gossipsub ~0.44.0 + libp2p-request-response ~0.24.0	2m 50s
Semver: sqllogictest v0.13.0	51s
Semver: tokio ~v1.25.0 (explicit)	1m 29s
Check failure when installed rustc is too old	21s
Semver: clap v3.2.0	1m 21s
Semver: perf-event-open-sys2 v5.0.0	38s
Semver: ref-slice fork (git)	26s
Semver: tokio ~v1.25.0 (implicit)	1m 9s
Semver: ref-slice fork (sparse)	20s
Semver: ref-slice fork (Windows) (git)	1m 4s
Semver: ref-slice fork (Windows) (sparse)	1m 13s
All CI stages	2s
Check for semver compliance	0s
Run the release workflow	0s
	2h 2m 13s

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