Rust

Update to bigdecimal 0.4.7 #436

Job	Run time
Check License Header	2m 20s
Check cargo fmt	34s
cargo check	13m 50s
build with wasm-pack	3m 14s
cargo test (macos)	14m 19s
cargo test (macos-aarch64)	12m 17s
Verify MSRV (Min Supported Rust Version)	9m 29s
Verify Vendored Code	50s
cargo test (win64)	1h 20m 6s
cargo test datafusion-cli (amd64)	4m 39s
cargo examples (amd64)	14m 58s
cargo test (amd64)	12m 9s
check configs.md and ***_functions.md is up-to-date	3m 45s
check Cargo.toml formatting	3m 9s
clippy	6m 51s
cargo test hash collisions (amd64)	28m 44s
cargo doc	4m 22s
Run sqllogictest with Postgres runner	4m 18s
cargo test doc (amd64)	18m 2s
cargo test pyarrow (amd64)	3m 7s
verify benchmark results (amd64)	15m 3s
	4h 16m 6s

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