1.2.0
FEA add LearningCurveDisplay to show plot learning curve (#24084)
MAINT use nanmin to replace nan by finite values in ranking of SearchCV (#24543)
FIX Add NaN handling to selection of best parameters for `HalvingGridSearchCV` (#24539)
DOC Improve format in docstring code examples of splitters (#24475)
DOC add a docstring example for the learning_curve function (#24546)