Update Rust crate tempfile to 3.8.0 #367

Job	Run time
Cross-compile to aarch64	2m 34s
Build and test core crates (ubuntu-latest, 1.66)	4m 37s
Build and test (all features) (ubuntu-latest, 1.66)	5m 2s
Build documentation (ubuntu-latest)	1m 32s
Build and test core crates (ubuntu-latest, stable)	3m 16s
Build and test (all features) (ubuntu-latest, stable)	4m 10s
Lint	1m 40s
Build and test core crates (macos-latest, 1.66)	6m 7s
Build and test (all features) (macos-latest, 1.66)	6m 59s
cargo-compare extended tests (ubuntu-latest)	10m 41s
Build and test core crates (macos-latest, stable)	4m 4s
cargo-compare extended tests (macos-latest)	6m 19s
Build and test (all features) (macos-latest, stable)	7m 40s
Build and test core crates (windows-latest, 1.66)	6m 44s
Build and test (all features) (windows-latest, 1.66)	9m 43s
Build and test core crates (windows-latest, stable)	9m 18s
Build and test (all features) (windows-latest, stable)	9m 41s
	1h 40m 7s

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