[DOCS] Add docs on to_arrow and as_arrow #9152

Job	Run time
check-unused-cargo-deps	1m 27s
doctests	1m 48s
integration-test-build (3.8)	7m 23s
benchmark-codspeed	11m 47s
rust-tests-platform (ubuntu)	2m 33s
style	2m 42s
test-imports-platform (ubuntu, 3.8)	1m 52s
rust-tests-platform (Windows)	8m 45s
unit-tests-with-coverage (3.8, py, 7.0.0, 0, ubuntu-20.04)	5m 48s
test-imports-platform (Windows, 3.8)	4m 19s
unit-tests-with-coverage (3.8, py, 7.0.0, 1, ubuntu-20.04)	4m 57s
unit-tests-with-coverage (3.10, py, 16.0.0, 0, ubuntu-20.04)	11m 11s
unit-tests-with-coverage (3.10, py, 16.0.0, 0, windows-latest)	6m 49s
unit-tests-with-coverage (3.10, py, 16.0.0, 1, ubuntu-20.04)	9m 59s
unit-tests-with-coverage (3.10, py, 16.0.0, 1, windows-latest)	5m 44s
unit-tests-with-coverage (3.10, ray, 16.0.0, 0, ubuntu-20.04)	14m 58s
unit-tests-with-coverage (3.10, ray, 16.0.0, 0, windows-latest)	6m 45s
test-imports	1s
integration-test-tpch (3.8, py)	1m 22s
integration-test-tpch (3.8, ray)	1m 38s
integration-test-sql (3.8, py)	2m 51s
integration-test-io-credentialed	0s
integration-test-sql (3.8, ray)	2m 57s
integration-test-iceberg (3.8, py)	3m 26s
integration-test-iceberg (3.8, ray)	3m 36s
integration-test-io (3.8, py)	7m 19s
integration-test-io (3.8, ray)	8m 16s
rust-tests	1s
unit-tests	1s
Publish coverage reports to CodeCov	9s
integration-tests	1s
	2h 20m 25s

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