Rust

minor: Add link to example in catalog #4283

Job	Run time
Check cargo fmt	41s
Check License Header	2m 17s
linux build test	4m 11s
build with wasm-pack	3m 33s
cargo test (macos-aarch64)	15m 20s
Verify MSRV (Min Supported Rust Version)	9m 49s
Verify Vendored Code	46s
cargo check functions	1m 43s
cargo check no default features	8m 31s
cargo check datafusion	5m 12s
cargo test (amd64)	12m 46s
cargo test doc (amd64)	18m 19s
cargo doc	4m 57s
cargo examples (amd64)	15m 6s
cargo test datafusion-cli (amd64)	5m 13s
check Cargo.toml formatting	3m 11s
clippy	2m 7s
check configs.md and ***_functions.md is up-to-date	4m 0s
Run sqllogictest with Postgres runner	5m 10s
cargo test pyarrow (amd64)	3m 21s
verify benchmark results (amd64)	8m 45s
	2h 14m 58s

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