Rust

Refactor `percentile_cont` to clarify support input types #55553

Job	Run time
Verify Vendored Code	1m 18s
Check cargo fmt	58s
Verify MSRV (Min Supported Rust Version)	4m 47s
build and run with wasm-pack	5m 2s
linux build test	3m 37s
cargo test (macos-aarch64)	12m 9s
clippy	5m 34s
Run sqllogictest with Postgres runner	7m 12s
verify benchmark results (amd64)	11m 49s
cargo check datafusion-functions features	2m 13s
cargo test doc (amd64)	8m 56s
cargo check datafusion-proto features	4m 32s
cargo check datafusion features	10m 33s
Run sqllogictest in Substrait round-trip mode	7m 13s
cargo test (amd64)	10m 47s
check Cargo.toml formatting	4m 51s
check example README is up-to-date	1m 53s
check configs.md and ***_functions.md is up-to-date	6m 8s
cargo examples (amd64)	9m 56s
cargo check datafusion-substrait features	10m 1s
cargo check datafusion-common features	1m 46s
cargo doc	4m 46s
cargo test datafusion-cli (amd64)	5m 14s
	2h 21m 15s

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