feat: add cancellation api #602

Job	Run time
Collect changes / collect-changes	6s
Python tests / unit-tests (py313)	1m 17s
Python tests / lint-and-format-check	47s
Python tests / unit-tests (py312)	1m 18s
Python tests / types-check	1m 11s
Python tests / unit-tests (py311)	1m 4s
Python tests / unit-tests (py310)	1m 8s
Python tests / unit-tests (py39)	1m 12s
status-check	1s
	8m 4s

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