Bump tempfile from 3.4.0 to 3.8.1 #6904

Job	Run time
build-linux-musl (nightly)	11m 10s
build-linux-arm (nightly)	22m 21s
Lints	59s
build-linux-musl (stable)	9m 16s
build (ubuntu-latest, nightly)	11m 44s
build-linux-arm (stable)	19m 18s
build-linux-musl (1.65)	12m 59s
build (ubuntu-latest, stable)	10m 38s
build-linux-arm (1.65)	24m 27s
Changelog Test	9s
build (ubuntu-latest, 1.65)	10m 13s
build (macos-latest, nightly)	16m 29s
Security audit	10s
udeps	12m 23s
build (macos-latest, stable)	18m 59s
build (macos-latest, 1.65)	17m 14s
build (windows-latest, nightly)	6m 29s
build (windows-latest, stable)	6m 59s
build (windows-latest, 1.65)	6m 17s
	3h 38m 14s

Provide feedback