[CHORE] add/fix many clippy lints #9320

Job	Run time
rust-tests-platform (ubuntu)	3m 10s
integration-test-build (3.8)	7m 48s
unit-tests-with-coverage (3.8, py, 7.0.0, 0, ubuntu-20.04)	6m 12s
rust-tests-platform (Windows)	7m 52s
unit-tests-with-coverage (3.8, py, 7.0.0, 1, ubuntu-20.04)	5m 13s
benchmark-codspeed	12m 41s
unit-tests-with-coverage (3.10, py, 16.0.0, 0, ubuntu-20.04)	11m 19s
check-unused-cargo-deps	1m 15s
unit-tests-with-coverage (3.10, py, 16.0.0, 0, windows-latest)	7m 57s
doctests	2m 13s
unit-tests-with-coverage (3.10, py, 16.0.0, 1, ubuntu-20.04)	10m 2s
style	2m 44s
unit-tests-with-coverage (3.10, py, 16.0.0, 1, windows-latest)	6m 38s
test-imports-platform (ubuntu, 3.8)	2m 13s
unit-tests-with-coverage (3.10, ray, 16.0.0, 0, ubuntu-20.04)	15m 14s
test-imports-platform (Windows, 3.8)	5m 52s
unit-tests-with-coverage (3.10, ray, 16.0.0, 0, windows-latest)	7m 13s
test-imports	1s
integration-test-io (3.8, py)	7m 32s
integration-test-io (3.8, ray)	8m 31s
integration-test-sql (3.8, py)	2m 57s
integration-test-iceberg (3.8, py)	3m 31s
integration-test-io-credentialed	0s
integration-test-sql (3.8, ray)	3m 11s
integration-test-iceberg (3.8, ray)	3m 45s
integration-test-tpch (3.8, py)	1m 48s
integration-test-tpch (3.8, ray)	1m 38s
rust-tests	1s
unit-tests	1s
Publish coverage reports to CodeCov	9s
integration-tests	1s
	2h 28m 42s

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