Scikit-learn 1.7 fixes

[cajchristian]

This change will update scikit-matter to be compatible with sklearn v 1.7.0, the only change needed was to make DirectionalConvexHull inherit BaseEstimator.

Contributor (creator of PR) checklist

• Tests updated (for new features and bugfixes)?
• Documentation updated (for new features)?
• Issue referenced (for PRs that solve an issue)?

For Reviewer

• CHANGELOG updated if important change?

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📚 Documentation preview 📚: https://scikit-matter--257.org.readthedocs.build/en/257/

[PicoCentauri]

I think we shoukd set the deps of scikit-learn to >1.7, <1.8 in the pyproject.toml. This at least avoids that the code breaks on the userspace when we are not fast enough to relase a patch

[PicoCentauri]

Thanks!