scikit-learn's mean_squared_error API change breaks MachineControl.fit

[dkgaraujo]

mean_squared_error no longer takes argument squared. This is breaking MachineControls.fit, see traceback from re-running file 01_machine_controls.qmd:

> synth_BR.fit(X_pre, y_pre)

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
File /Users/douglasaraujo/Coding/gingado/0[1](https://file+.vscode-resource.vscode-cdn.net/Users/douglasaraujo/Coding/gingado/01_machine_controls.qmd:1)_machine_controls.qmd:1
----> 1 synth_BR.fit(X_pre, y_pre)

File ~/Coding/gingado/gingado/estimators.py:271, in MachineControl.fit(self, X, y)
    [268](https://file+.vscode-resource.vscode-cdn.net/Users/douglasaraujo/Coding/gingado/~/Coding/gingado/gingado/estimators.py:268) self._select_controls(X=X, y=y)
    [270](https://file+.vscode-resource.vscode-cdn.net/Users/douglasaraujo/Coding/gingado/~/Coding/gingado/gingado/estimators.py:270) if self.with_placebo:
--> [271](https://file+.vscode-resource.vscode-cdn.net/Users/douglasaraujo/Coding/gingado/~/Coding/gingado/gingado/estimators.py:271)     self._fit_placebo_models(X=X, y=y)
    [273](https://file+.vscode-resource.vscode-cdn.net/Users/douglasaraujo/Coding/gingado/~/Coding/gingado/gingado/estimators.py:273) X_donor_pool, y = self._validate_data(X[self.donor_pool_], y)
    [275](https://file+.vscode-resource.vscode-cdn.net/Users/douglasaraujo/Coding/gingado/~/Coding/gingado/gingado/estimators.py:275) self.estimator.fit(X=X_donor_pool, y=y)

File ~/Coding/gingado/gingado/estimators.py:209, in MachineControl._fit_placebo_models(self, X, y)
    [207](https://file+.vscode-resource.vscode-cdn.net/Users/douglasaraujo/Coding/gingado/~/Coding/gingado/gingado/estimators.py:207) self.placebo_models_[entity] = clone(self.estimator)
    [208](https://file+.vscode-resource.vscode-cdn.net/Users/douglasaraujo/Coding/gingado/~/Coding/gingado/gingado/estimators.py:208) self.placebo_models_[entity].fit(X_pl, y_pl)
--> [209](https://file+.vscode-resource.vscode-cdn.net/Users/douglasaraujo/Coding/gingado/~/Coding/gingado/gingado/estimators.py:209) self.placebo_score_pre_[entity] = mean_squared_error(
    [210](https://file+.vscode-resource.vscode-cdn.net/Users/douglasaraujo/Coding/gingado/~/Coding/gingado/gingado/estimators.py:210)     y_true=y_pl, 
    [211](https://file+.vscode-resource.vscode-cdn.net/Users/douglasaraujo/Coding/gingado/~/Coding/gingado/gingado/estimators.py:211)     y_pred=self.placebo_models_[entity].predict(X=X_pl),
    [212](https://file+.vscode-resource.vscode-cdn.net/Users/douglasaraujo/Coding/gingado/~/Coding/gingado/gingado/estimators.py:212)     squared=False
    [213](https://file+.vscode-resource.vscode-cdn.net/Users/douglasaraujo/Coding/gingado/~/Coding/gingado/gingado/estimators.py:213) )

File ~/Coding/.venv_gingado/lib/python3.10/site-packages/sklearn/utils/_param_validation.py:194, in validate_params.<locals>.decorator.<locals>.wrapper(*args, **kwargs)
    [191](https://file+.vscode-resource.vscode-cdn.net/Users/douglasaraujo/Coding/gingado/~/Coding/.venv_gingado/lib/python3.10/site-packages/sklearn/utils/_param_validation.py:191) func_sig = signature(func)
    [193](https://file+.vscode-resource.vscode-cdn.net/Users/douglasaraujo/Coding/gingado/~/Coding/.venv_gingado/lib/python3.10/site-packages/sklearn/utils/_param_validation.py:193) # Map *args/**kwargs to the function signature
--> [194](https://file+.vscode-resource.vscode-cdn.net/Users/douglasaraujo/Coding/gingado/~/Coding/.venv_gingado/lib/python3.10/site-packages/sklearn/utils/_param_validation.py:194) params = func_sig.bind(*args, **kwargs)
    [195](https://file+.vscode-resource.vscode-cdn.net/Users/douglasaraujo/Coding/gingado/~/Coding/.venv_gingado/lib/python3.10/site-packages/sklearn/utils/_param_validation.py:195) params.apply_defaults()
    [197](https://file+.vscode-resource.vscode-cdn.net/Users/douglasaraujo/Coding/gingado/~/Coding/.venv_gingado/lib/python3.10/site-packages/sklearn/utils/_param_validation.py:197) # ignore self/cls and positional/keyword markers

File /Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/inspect.py:3179, in Signature.bind(self, *args, **kwargs)
   [3174](https://file+.vscode-resource.vscode-cdn.net/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/inspect.py:3174) def bind(self, /, *args, **kwargs):
   [3175](https://file+.vscode-resource.vscode-cdn.net/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/inspect.py:3175)     """Get a BoundArguments object, that maps the passed `args`
   [3176](https://file+.vscode-resource.vscode-cdn.net/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/inspect.py:3176)     and `kwargs` to the function's signature.  Raises `TypeError`
   [3177](https://file+.vscode-resource.vscode-cdn.net/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/inspect.py:3177)     if the passed arguments can not be bound.
   [3178](https://file+.vscode-resource.vscode-cdn.net/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/inspect.py:3178)     """
-> [3179](https://file+.vscode-resource.vscode-cdn.net/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/inspect.py:3179)     return self._bind(args, kwargs)

File /Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/inspect.py:3168, in Signature._bind(self, args, kwargs, partial)
   [3166](https://file+.vscode-resource.vscode-cdn.net/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/inspect.py:3166)         arguments[kwargs_param.name] = kwargs
   [3167](https://file+.vscode-resource.vscode-cdn.net/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/inspect.py:3167)     else:
-> [3168](https://file+.vscode-resource.vscode-cdn.net/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/inspect.py:3168)         raise TypeError(
   [3169](https://file+.vscode-resource.vscode-cdn.net/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/inspect.py:3169)             'got an unexpected keyword argument {arg!r}'.format(
   [3170](https://file+.vscode-resource.vscode-cdn.net/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/inspect.py:3170)                 arg=next(iter(kwargs))))
   [3172](https://file+.vscode-resource.vscode-cdn.net/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/inspect.py:3172) return self._bound_arguments_cls(self, arguments)

[dkgaraujo]

@jdamp-bis since you recently reviewed changes ins scikit-learn and how they could affect gingado, could you please check if it's really just an API change as I suspect, and open the PR to fix it?