Fix ArrowScan materializing entire FileScanTask into memory #7716

Job	Run time
integration-test-s3	1m 9s
integration-test-adls	1m 20s
lint-and-unit-test (3.13)	1m 10s
lint-and-unit-test (3.11)	1m 5s
lint-and-unit-test (3.12)	1m 7s
integration-test	4m 58s
lint-and-unit-test (3.10)	1m 11s
integration-test-gcs	1m 13s
integration-coverage-report	0s
	13m 13s

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