Not having used uv but being on the Cargo team for Rust, I wish `cargo update` was `cargo lock update` because it is making our life more difficult to add a version requirement update command/mode inside of Cargo. The effort has been stalled for years.

- Our compatibility guarantees mean we can't fundamentally change `cargo update`

- Using the third-party package name of `cargo upgrade` would be confusing in the distinction between the two

- We have to be very careful adding the mode to the existing command