Rust

Clean internal implementation of WindowUDF #21756

Job	Run time
Check cargo fmt	38s
build with wasm-pack	1m 52s
cargo check	2m 25s
cargo test (mac)	18m 26s
Verify MSRV	6m 17s
Verify Vendored Code	47s
cargo test (win64)	1h 0m 48s
cargo examples (amd64)	6m 42s
cargo test datafusion-cli (amd64)	2m 48s
cargo doc	3m 8s
cargo test (amd64)	8m 41s
cargo test doc (amd64)	9m 25s
Run sqllogictest with Postgres runner	3m 6s
verify benchmark results (amd64)	9m 45s
check Cargo.toml formatting	1m 16s
clippy	4m 24s
check configs.md is up-to-date	2m 21s
cargo test hash collisions (amd64)	8m 26s
cargo test pyarrow (amd64)	2m 11s
	2h 33m 26s

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