Bump actions/download-artifact from 5.0.0 to 6.0.0 (#152) #156

Job	Run time
Test / Run Tests & Submit Coverage (27.2, 1.18, ubuntu-latest, true)	21s
Docs / Generate	46s
Test / Check Formatting	41s
Test / Run Tests & Submit Coverage (24.2, 1.11, ubuntu-22.04)	20s
Test / Check Credo	49s
Test / Generate Dialyzer PLT	2m 16s
Docs / Upload	0s
Test / Check Dialyzer	22s
	5m 35s

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