Rust

Update petgraph requirement from 0.6.2 to 0.7.1 #1807

Job	Run time
Check cargo fmt	41s
Check License Header	2m 12s
linux build test	4m 1s
build with wasm-pack	3m 18s
Verify MSRV (Min Supported Rust Version)	9m 46s
cargo test (macos-aarch64)	13m 45s
Verify Vendored Code	50s
check Cargo.toml formatting	3m 34s
clippy	7m 42s
check configs.md and ***_functions.md is up-to-date	4m 12s
cargo check datafusion	4m 58s
cargo check functions	1m 35s
cargo check no default features	6m 40s
cargo doc	4m 37s
cargo test (amd64)	12m 28s
cargo test datafusion-cli (amd64)	4m 51s
cargo test doc (amd64)	18m 7s
cargo examples (amd64)	15m 43s
Run sqllogictest with Postgres runner	4m 46s
cargo test pyarrow (amd64)	3m 22s
verify benchmark results (amd64)	8m 39s
	2h 15m 47s

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