Bump actions/download-artifact from 3 to 4.1.7 in /.github/workflows #900

Job	Run time
prepare	2s
Check	48s
Test Suite (macOS-latest, stable)	1m 14s
Rustfmt	5s
Test Suite (macOS-latest, nightly)	2m 14s
Clippy	49s
Test Suite (windows-latest, stable)	2m 58s
Test Suite (windows-latest, nightly)	3m 49s
Test Suite (ubuntu-latest, stable)	1m 33s
Test Suite (ubuntu-latest, nightly)	2m 54s
	16m 26s

Provide feedback