Tests

feat: Add Program#control_flow_graph() method #1287

Job	Run time
Check types	53s
Check types	1m 36s
Check formatting	42s
Check style	32s
Build and test documentation	1m 2s
Run Doctests (3.8)	1m 30s
Test Unit (3.8)	1m 13s
Run Doctests (3.9)	1m 48s
Test e2e QVM (3.8)	1m 25s
Test Unit (3.9)	1m 21s
Run Doctests (3.10)	1m 48s
Test e2e QVM (3.9)	1m 11s
Test Unit (3.10)	1m 30s
Run Doctests (3.11)	1m 33s
Test e2e QVM (3.10)	1m 9s
Test Unit (3.11)	1m 19s
Run Doctests (3.12)	1m 45s
Test e2e QVM (3.11)	1m 11s
Test Unit (3.12)	1m 29s
Test e2e QVM (3.12)	1m 15s
	26m 12s

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