add `DOWNLOAD` staging action #2468

Job	Run time
linting	52s
tests (3.7)	58s
analytics (3.7)	5m 13s
tests (3.8)	54s
analytics (3.8)	4m 44s
tests (3.9)	57s
analytics (3.9)	4m 52s
tests (3.10)	52s
analytics (3.10)	4m 51s
tests (3.11)	59s
analytics (3.11)	4m 41s
tests (3.12)	1m 2s
analytics (3.12)	4m 35s
notebook_integration_test (3.10) / tests	1m 46s
notebook_integration_test (3.11) / tests	2m 10s
notebook_integration_test (3.12) / tests	2m 15s
notebook_integration_test (3.7) / tests	2m 26s
notebook_integration_test (3.8) / tests	1m 45s
notebook_integration_test (3.9) / tests	1m 55s
	47m 47s

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