feature_scoring: fix Regressor criterion depreciation
feature_scoring: fix Regressor criterion depreciation

scikit-learn 1.1 depreciated the use of "mse" as regression criterion, and replaced it with "squared_error". This commit fixes two of those instances in analysis/feature_scoring.py.

"""Deprecated since version 1.0: Criterion “mse” was deprecated in v1.0 and will be removed in version 1.2. Use criterion="squared_error" which is equivalent."""

quaquel/EMAworkbench,quaquel/EMAworkbench