This fixes a clippy warning:

```
warning: you are deriving `PartialEq` and can implement `Eq`
   --> zbus/src/fdo.rs:452:57
    |
452 | #[derive(Deserialize_repr, Serialize_repr, Type, Debug, PartialEq)]
    |                                                         ^^^^^^^^^ help: consider deriving `Eq` as well: `PartialEq, Eq`
```

For some of the types, we had to ignore the warning due to:

https://github.com/rust-lang/rust-clippy/issues/8970