BLD: Prevent Scikit-learn 1.6.0

This version introduced the method __sklearn_tags__(),
but it currently seems broken.  Many tests run into calls for:

env\Lib\site-packages\sklearn\utils\_tags.py:396: in get_tags
    tags = estimator.__sklearn_tags__()

E AttributeError: 'super' object has no attribute '__sklearn_tags__'

pyproject.toml

@@ -27,7 +27,7 @@ classifiers = [
 readme = "README.rst"
 dependencies = [
     "jax>=0.4,<0.5",
-    "scikit-learn>=1.1, !=1.5.0",
+    "scikit-learn>=1.1, !=1.5.0, !=1.6.0",
     "derivative>=0.6.2",
     "typing_extensions",
 ]