Version 0.3.0 fails tests due to deprecated scikit-learn functionality.

[stephenpardy]

The latest release, 0.3.0 fails some tests due to the use of if_delegate_has_method which was removed from sklearn in version 1.3.

Steps:

• install versin 0.3.0
• run tests pytest --verbose --pyargs sklearn_extra -k 'not test_all_estimators'

ERROR sklearn_extra/robust/__init__.py - ImportError: cannot import name 'if_delegate_has_method' from 'sklearn.utils.metaestimators' (<PATH>/sklearn-extra/lib/python3.10/site-packages/sklearn/utils/metaestimators.py)
ERROR sklearn_extra/robust/mean_estimators.py - ImportError: cannot import name 'if_delegate_has_method' from 'sklearn.utils.metaestimators' (<PATH>/sklearn-extra/lib/python3.10/site-packages/sklearn/utils/metaestimators.py)
ERROR sklearn_extra/robust/robust_weighted_estimator.py - ImportError: cannot import name 'if_delegate_has_method' from 'sklearn.utils.metaestimators' (<PATH>/sklearn-extra/lib/python3.10/site-packages/sklearn/utils/metaestimators.py)
ERROR sklearn_extra/robust/tests/test_mean_estimators.py - ImportError: cannot import name 'if_delegate_has_method' from 'sklearn.utils.metaestimators' (<PATH>/sklearn-extra/lib/python3.10/site-packages/sklearn/utils/metaestimators.py)
ERROR sklearn_extra/robust/tests/test_mean_estimators.py
ERROR sklearn_extra/robust/tests/test_robust_weighted_estimator.py - ImportError: cannot import name 'if_delegate_has_method' from 'sklearn.utils.metaestimators' (<PATH>/sklearn-extra/lib/python3.10/site-packages/sklearn/utils/metaestimators.py)
ERROR sklearn_extra/robust/tests/test_robust_weighted_estimator.py
ERROR sklearn_extra/tests/test_common.py - ImportError: cannot import name 'if_delegate_has_method' from 'sklearn.utils.metaestimators' (<PATH>/sklearn-extra/lib/python3.10/site-packages/sklearn/utils/metaestimators.py)
ERROR sklearn_extra/tests/test_common.py
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Interrupted: 9 errors during collection !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

This has already been fixed in a recent PR: 0f95d8d
So we would just need to cut a new release. Alternatively you could cut a bugfix release for version 0.3.0 that pinned the dependencies with an upper pin.