Run Integration Tests

Add tests for `examples/hello_world` #5

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Run time

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Job	Run time
Run Tests (test_phoenix_v1)	4m 17s
Run Tests (test_squads_v3)	3m 32s
Run Tests (test_drift_v2)	7m 57s
Run Tests (test_marginfi_v2)	6m 6s
	21m 52s