PhantomData<T> serializes to unit struct, not T

[HactarCE]

The crate docs says that PhantomData<T> currently translates to the Zod schema T. This should not be the case; PhantomData<T> does not contain a T and is thus serialized as a unit struct. It merely appears to contain a a T for the sake of subtyping/variance, which I believe is irrelevant for this crate.

[nicolaiunrein]

I agree. However I am almost done with a complete rewrite to fully support generics. I'll keep this issue in mind.