Rust

Wrap immutable plan parts into Arc #57

Job	Run time
Check cargo fmt	1m 10s
build and run with wasm-pack	4m 59s
Verify MSRV (Min Supported Rust Version)	4m 50s
linux build test	3m 57s
Verify Vendored Code	1m 25s
cargo test (macos-aarch64)	15m 17s
cargo check datafusion-functions features	2m 23s
cargo doc	4m 52s
cargo check datafusion-substrait features	10m 8s
cargo test doc (amd64)	8m 5s
cargo test (amd64)	10m 21s
cargo examples (amd64)	12m 5s
cargo check datafusion-proto features	4m 35s
cargo check datafusion features	10m 51s
check Cargo.toml formatting	3m 22s
cargo check datafusion-common features	1m 51s
check configs.md and ***_functions.md is up-to-date	4m 40s
check example README is up-to-date	43s
cargo test datafusion-cli (amd64)	4m 20s
Run sqllogictest in Substrait round-trip mode	6m 22s
clippy	4m 26s
verify benchmark results (amd64)	10m 22s
Run sqllogictest with Postgres runner	6m 22s
	2h 17m 26s

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