Incorrect result type for `returns.curry.partial` with keyword arguments for positional parameters

# Bug report ## What's wrong When using `returns.curry.partial`, if you partially apply a positional parameter using a keyword argument, the resulting type is incorrect. Result type of callable allows passing the remaining arguments as positional, but this leads to a runtime error. ### Example ```python def foo(x: int, *, y: int) -> None: ... bar = returns.curry.partial(foo, x=1) reveal_type(bar) # => Mypy: "def (y: builtins.int)" # => Expected: "def (*, y: builtins.int)" bar(2) # No errors from mypy, but got runtime error # TypeError: foo() got multiple values for argument 'x' ``` ## How is that should be In this scenario, the remaining parameters should be strictly keyword-only. The resulting type should reflect this restriction, and passing a positional argument should be flagged as an error at type checking time. ## System information - `python` version: `3.13.4` - `returns` version: `0.25.0` - `mypy` version: `1.15.0`