feat(gooddata-pipelines): support composite key references on parent datasets #1806

Job	Run time
Collect changes / collect-changes	10s
Python tests / types-check	14s
Python tests / docs-scripts-tests	14s
Python tests / lint-and-format-check	12s
Python tests / unit-tests (py310)	4m 10s
Python tests / unit-tests (py313)	2m 51s
Python tests / unit-tests (py314)	3m 12s
Python tests / unit-tests (py311)	3m 35s
Python tests / unit-tests (py312)	3m 11s
status-check	3s
	17m 52s

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