FIX - doctest failing (skrub-data#1631)

Author: rcap107

skrub/_data_ops/_skrub_namespace.py

@@ -1286,7 +1286,7 @@ def describe_defaults(self):
         ... )
         >>> pred = X.skb.apply(selector, y=y).skb.apply(classifier, y=y)
         >>> print(pred.skb.describe_defaults())
-        {'k': 9, 'classifier': 'logistic', 'C': 1.000...}
+        {'k': 9, 'classifier': 'logistic', 'C': 1.0...}
         """
         from ._evaluation import choice_graph, chosen_or_default_outcomes
         from ._inspection import describe_params