Add crates to the v1 API

[Kobzol]

I'm working on implementing yanking/unyanking via triagebot on Zulip. For that, it needs to have access to which teams own what crates.

This could probably be made more forward-compatible, but we don't yet know which information about crates we will need, and the only consumer for now should be triagebot, so should be fine.

[rustbot]

rust_team_data/src/v1.rs has been modified, it is used (as a git dependency) by multiple sub-projects like triagebot, the www.rust-lang.org website and others.

If you are changing the data structures, please make sure that the changes are not going to break serde deserialization (adding a field is fine; removing or renaming a field isn't).

If you must do a breaking change to the format, make sure to coordinate it with all the users of the rust_team_data crate.

[github-actions]

Dry-run check results

[WARN  rust_team::sync] sync-team is running in dry mode, no changes will be applied.
[INFO  rust_team::sync] synchronizing crates-io
[INFO  rust_team::sync] synchronizing github