feat(pt): add dpa3 alpha descriptor #10506

Job	Run time
Test Python (1, 3.9)	34m 56s
Test Python (1, 3.12)	42m 30s
Test Python (2, 3.9)	33m 59s
Test Python (2, 3.12)	41m 10s
Test Python (3, 3.9)	33m 43s
Test Python (3, 3.12)	40m 58s
Test Python (4, 3.9)	33m 39s
Test Python (4, 3.12)	40m 38s
Test Python (5, 3.9)	32m 50s
Test Python (5, 3.12)	38m 48s
Test Python (6, 3.9)	33m 41s
Test Python (6, 3.12)	40m 44s
Combine and update integration test durations (3.9)	6s
Combine and update integration test durations (3.12)	3s
Pass testing Python	3s
	7h 27m 48s

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