chore: reinstate find_df_window_func #35726

Job	Run time
cargo check	9m 41s
build with wasm-pack	3m 18s
Check License Header	2m 11s
cargo test (macos)	15m 30s
cargo test (win64)	1h 16m 0s
Check cargo fmt	37s
cargo test (macos-aarch64)	14m 52s
Verify MSRV (Min Supported Rust Version)	9m 13s
Verify Vendored Code	51s
cargo examples (amd64)	15m 18s
cargo test datafusion-cli (amd64)	4m 38s
cargo doc	4m 33s
cargo test (amd64)	11m 45s
cargo test doc (amd64)	17m 38s
Run sqllogictest with Postgres runner	4m 24s
verify benchmark results (amd64)	15m 16s
check Cargo.toml formatting	2m 57s
clippy	7m 0s
check configs.md and ***_functions.md is up-to-date	3m 45s
cargo test hash collisions (amd64)	29m 16s
cargo test pyarrow (amd64)	3m 5s
	4h 11m 48s

Provide feedback