Custom Python exception with `kind` and `path`

We need a new exception that subclasses `ValueError` and  adds a `kind` attribute which is the name from:

https://github.com/pydantic/jiter/blob/1fbedbfbcb86a767b9dd621d080f430528aebc33/crates/jiter/src/errors.rs#L6

and

https://github.com/pydantic/jiter/blob/1fbedbfbcb86a767b9dd621d080f430528aebc33/crates/jiter/src/errors.rs#L189