Add sklearn HistGradientBoostingClassifier to auto-ml

[LionelMassoulard]

https://scikit-learn.org/stable/modules/generated/sklearn.ensemble.HistGradientBoostingClassifier.html

[LionelMassoulard]

should wait for sklearn to be removed from experimental

[gfournier]

Since sklearn 0.24.0, there is a categorical data support in HistGradientBoostingClassifier: https://scikit-learn.org/stable/auto_examples/release_highlights/plot_release_highlights_0_24_0.html