Build: Bump gcsfs from 2026.1.0 to 2026.2.0 #7683

Job	Run time
integration-test-gcs	1m 20s
integration-test-adls	1m 26s
lint-and-unit-test (3.13)	3m 1s
integration-test-s3	1m 41s
lint-and-unit-test (3.12)	3m 4s
integration-test	11m 15s
lint-and-unit-test (3.10)	3m 7s
lint-and-unit-test (3.11)	2m 55s
integration-coverage-report	36s
	28m 25s

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