build: run cargo update

Accepted all updates,

- except for `chrono`, which remains at `0.4.34` instead of being updated to `0.4.37` because the `chrono-english` dependency is incompatible: stevedonovan/chrono-english#29
  - It would be possible to patch the dependency in `Cargo.toml`, but then (I believe) we wouldn't be able to publish the git-branchless crate to crates.io: https://stackoverflow.com/questions/69235287/can-i-publish-a-crate-that-uses-a-patch#comment122393890_69235309,
    - and a large number of users install directly from `cargo`/crates.io.