Build: Declare typing-extensions as a core dependency #9192

Job	Run time
integration-test-gcs	1m 23s
lint-and-unit-test (3.12)	3m 13s
lint-and-unit-test (3.14)	2m 57s
lint-and-unit-test (3.11)	3m 43s
lint-and-unit-test (3.13)	3m 25s
cibw-dev-env-smoke-test	33s
integration-test	12m 3s
integration-test-adls	1m 9s
lint-and-unit-test (3.10)	3m 43s
integration-test-s3	1m 10s
integration-coverage-report	28s
	33m 47s

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