Scipy-events

Fixed

- Fixed issue with `ChangeAt` events and `t_eval` not covered in previous fix.

Fixed

- Fixed issue with `ChangeAt` events and `t_eval` (issue 1).

Fixed

- `Progress` now works for functions requiring `*args`.

Changed

- `ChangeAt` and `ChangeWhen` events now allow to change parameters.
This changed the signature of `Change` functions
from returning only the new initial conditions `y`
to returning a tuple of the initial conditions and parameters `(y, args)`.

Changed

- Remove `*args` from `Condition` and `Change` protocols.
Both of these are now correct for `pyright`:
python
def cond(t, y): ...
def cond(t, y, *args): ...

Added

- `Events` type union of all event types accepted by `solve_ivp`.
- Allow passing `args` to Conditions and Change functions.

Changed

- Change events to `kw_only` and `frozen` dataclasses.