feat(sdk): add LLM provider test & list-models enablers #1872

Job	Run time
Collect changes / collect-changes	9s
Python tests / docs-scripts-tests	16s
Python tests / lint-and-format-check	13s
Python tests / types-check	14s
Python tests / unit-tests (py311)	3m 30s
Python tests / unit-tests (py310)	3m 29s
Python tests / unit-tests (py313)	2m 40s
Python tests / unit-tests (py312)	2m 47s
Python tests / unit-tests (py314)	2m 46s
status-check	5s
	16m 9s

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