Rust

Update actions/cache action to v4 (#134) #589

Job	Run time
build-docker (1.63, x86_64-unknown-freebsd)	1m 32s
build-docker (stable, x86_64-unknown-freebsd)	1m 26s
build-windows (i686, msvc, 1.63)	3m 20s
build-unix (1.63, ubuntu)	2m 0s
build-docker (nightly, x86_64-unknown-freebsd)	1m 29s
build-windows (i686, msvc, stable)	1m 16s
build-unix (1.63, macos)	1m 56s
build-windows (i686, msvc, nightly)	1m 7s
build-unix (stable, ubuntu)	21s
build-windows (x86_64, msvc, 1.63)	3m 7s
build-unix (stable, macos)	12s
build-windows (x86_64, msvc, stable)	1m 3s
build-unix (nightly, ubuntu)	14s
build-windows (x86_64, msvc, nightly)	59s
build-unix (nightly, macos)	20s
build-windows (aarch64, msvc, 1.63)	3m 16s
build-windows (aarch64, msvc, stable)	1m 11s
build-windows (aarch64, msvc, nightly)	34s
	25m 23s

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