Update itertools requirement from 0.12 to 0.13 #1412

Job	Run time
Check cargo fmt	36s
cargo check	4m 16s
build with wasm-pack	2m 23s
cargo test (macos)	7m 12s
cargo test (macos-aarch64)	7m 9s
Verify MSRV (Min Supported Rust Version)	6m 50s
Verify Vendored Code	44s
cargo test (win64)	27m 21s
cargo test (amd64)	0s
cargo examples (amd64)	0s
cargo test datafusion-cli (amd64)	0s
check Cargo.toml formatting	0s
check configs.md is up-to-date	0s
clippy	0s
cargo test hash collisions (amd64)	0s
cargo test doc (amd64)	0s
cargo doc	0s
Run sqllogictest with Postgres runner	0s
cargo test pyarrow (amd64)	0s
verify benchmark results (amd64)	0s
	56m 31s

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