chore(deps): bump dawidd6/action-download-artifact from 2 to 6 in /.github/workflows #1220

Job	Run time
Build test (3.10)	20s
Validate (3.10)	23s
Unit tests (3.8)	25s
Unit tests (3.9)	21s
Unit tests (3.10)	24s
Unit tests (3.11)	21s
Unit tests (3.12)	21s
Unit tests (3.13)	29s
Quarantined Integration Tests (3.10, 3.1/stable)	35m 56s
Integration (3.10, 3.1/stable)	42m 51s
Integration (3.10, 3.3/stable)	40m 45s
Quarantined Integration Tests (3.10, 3.3/stable)	34m 15s
Integration (3.10, 3.4/stable)	40m 2s
Quarantined Integration Tests (3.10, 3.4/stable)	43m 32s
Integration (3.10, 3.5/stable)	40m 27s
Quarantined Integration Tests (3.10, 3.5/stable)	41m 9s
	5h 22m 1s

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