RUSTSEC-2024-0320: yaml-rust is unmaintained.

| Details | |
| --- | --- |
| Package | `yaml-rust` |
| Version | `0.4.5` |
| Warning | unmaintained |
| URL | https://github.com/rustsec/advisory-db/issues/1921 |
| Patched Versions | n/a |

The maintainer seems [unreachable](https://github.com/chyh1990/yaml-rust/issues/197).

Many issues and pull requests have been submitted over the years
without any [response](https://github.com/chyh1990/yaml-rust/issues/160).

## Alternatives

Consider switching to the actively maintained `yaml-rust2` fork of the original project:

- [yaml-rust2](https://github.com/Ethiraric/yaml-rust2)
- [yaml-rust2 @ crates.io](https://crates.io/crates/yaml-rust2))