feat: add locale to gooddata-sdk #1181

Job	Run time
Collect changes / collect-changes	16s
Python tests / lint-and-format-check	20s
Python tests / unit-tests (py310)	1m 2s
Python tests / unit-tests (py313)	1m 1s
Python tests / unit-tests (py311)	55s
Python tests / unit-tests (py312)	1m 6s
Python tests / unit-tests (py314)	57s
Python tests / types-check	1m 46s
status-check	3s
	7m 26s

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