Add type hints for `Zzz`'s `*args` and `**kwargs` with `ParamSpec`

[majidaldo]

kanren/kanren/core.py

Line 188 in 9f19cd4

def Zzz(gctor: Callable[[Any], GoalType], *args, **kwargs) -> GoalType:

...if python >= 3.10 can be assumed.

[brandonwillard]

...if python >= 3.10 can be assumed.

I believe we're already requiring typing_extensions, so ParamSpec should be available.