Rust 1.94 arrives with array windows to iterate slices

Rust 1.94 has been released, introducing the `array_windows` method for slice iteration, which works like `windows` but with a constant length so iterator items are `&[T; N]` rather than dynamically-sized. Cargo now supports the `include` key in config files for better organization across environments, and has upgraded to TOML v1.1 parsing, enabling inline tables across multiple lines, trailing commas, new escape characters, and optional seconds in times. The release also stabilizes 17 APIs. Developers can upgrade via `rustup update stable`.