feat: experimental transfer sharepoint authentication to AzureAD #1839

Job	Run time
setup (3.9)	4s
embedders_integration_test	3m 32s
api_based_integration_test (partitioners)	4m 7s
setup (3.10)	4s
api_based_integration_test (chunkers)	6m 45s
source_connectors_integration_test	6m 40s
test_src_api	47s
destination_connectors_integration_test	10m 28s
test_dest (3.9)	1m 26s
test_src (3.9)	2m 43s
test_src (3.10)	9m 29s
test_dest (3.10)	2m 40s
	48m 45s

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