Bump actions/download-artifact from 3 to 4.1.7 in /.github/workflows … #816

Job	Run time
linux-64-py3.10	5m 50s
estimation_mode_test	17m 6s
macOS	5m 46s
prototype_mtc	44m 8s
develop-docbuild	3m 23s
win-64	12m 7s
placeholder_psrc	36m 27s
Standard 1-Zone Example (MTC)	46m 44s
prototype_marin	2m 20s
Standard 2-Zone Example (SANDAG)	1h 0m 34s
prototype_mtc_extended	1h 16m 48s
random_seed_generation_test	3m 23s
placeholder_sandag	1h 35m 23s
prototype_sandag_xborder	5m 3s
production_semcog	5m 45s
prototype_mwcog	43m 23s
placeholder_multiple_zone	8m 28s
	7h 52m 38s

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