Update Rust crate tempfile to 3.8.0 #369

Job	Run time
Cross-compile to aarch64	3m 13s
Build and test core crates (ubuntu-latest, 1.66)	4m 2s
Build and test core crates (ubuntu-latest, stable)	3m 11s
Build and test (all features) (ubuntu-latest, 1.66)	5m 5s
Build and test core crates (macos-latest, 1.66)	5m 8s
Build and test (all features) (ubuntu-latest, stable)	4m 9s
Build and test core crates (macos-latest, stable)	4m 18s
Build and test (all features) (macos-latest, 1.66)	7m 20s
Build and test core crates (windows-latest, 1.66)	6m 13s
Build and test (all features) (macos-latest, stable)	6m 19s
Build and test core crates (windows-latest, stable)	6m 37s
Build and test (all features) (windows-latest, 1.66)	8m 30s
Build and test (all features) (windows-latest, stable)	12m 6s
Build documentation (ubuntu-latest)	1m 54s
Lint	1m 6s
cargo-compare extended tests (ubuntu-latest)	4m 30s
cargo-compare extended tests (macos-latest)	13m 12s
	1h 36m 53s

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