feat(sdk): Increase CustomApplicationSettings content limit to 250K characters #1273

Job	Run time
Collect changes / collect-changes	10s
Python tests / lint-and-format-check	22s
Python tests / unit-tests (py310)	3m 14s
Python tests / unit-tests (py314)	2m 34s
Python tests / unit-tests (py312)	2m 36s
Python tests / unit-tests (py311)	3m 22s
Python tests / unit-tests (py313)	2m 41s
Python tests / types-check	36s
status-check	3s
	15m 38s

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