There is no Rust Edition 2024; the latest available edition is 2021. You cannot migrate to a non-existent edition. To use the latest features, ensure your project is set to Edition 2021 in your Cargo.toml file.
[package]
edition = "2021"
If you are looking for the next edition, it is currently in development and will be named Edition 2024 only upon its future release, likely in late 2024 or 2025. Until then, Edition 2021 remains the standard.