1.3.1
FIX potential AttributeError when passing list to ValidationCurveDisplay (#27311)
MNT add isort to ruff's rules (#26649)
FIX clone to handle dict and GridSearchCV changing original params (#26786)
FIX `param_distribution` param of `HalvingRandomSearchCV` accepts list of dicts (#26893)
DOC add link to plot_cv_indices example in _split (#27244)