[BUG] Fix the scikit-learn miscellaneous/plot_set_output.py example

[csadorf]

The scikit-learn miscellaneous/plot_set_output.py example fails when running with the cuML accelerator due to a dimension mismatch between the logistic regression coefficients and feature names.

Error Message

ValueError: Length of values (5) does not match length of index (981)

Steps to Reproduce

Run the example with cuML accelerator:

python -m cuml.accel miscellaneous/plot_set_output.py

Expected Behavior

The example should run successfully.

Environment

• Python 3.12.9
• cuML 25.04 (nightlies)
• scikit-learn 1.5.2