Update to SurrealDB stable version and adjust Rust toolchain

[retrokiller543]

This PR updates the crate to use the latest stable version of SurrealDB, which recently became available.

Changes:

• SurrealDB update: The crate has been updated to use the latest stable version of SurrealDB.
• Version bump: The crate version has been incremented accordingly. However, I am unsure if this is the preferred versioning, so feel free to adjust as needed.
• Rust toolchain update: Due to the SurrealDB update, the minimum required Rust toolchain version has been increased from 1.80.0 to 1.80.1.

These updates were necessary for my own project, and I hope they will be helpful to others as well. Please let me know if any adjustments are needed.

[Odonno]

Perfect! surrealdb-migrations v2 is now published.