Avoid deprecated functionality in cupy 14.1

[jcrist]

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ℹ️ Recent review info

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📥 Commits

Reviewing files that changed from the base of the PR and between a2d706e and 82e1795.

📒 Files selected for processing (1)

• python/cuml/cuml/_thirdparty/sklearn/utils/sparsefuncs.py

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📝 Walkthrough

Summary by CodeRabbit

Release Notes

• Chores

  • Updated copyright year information.

• Refactor

  • Improved sparse matrix conversion handling in min/max operations.

Walkthrough

This PR updates a scipy sparse utilities helper by fixing the sparse-to-dense array conversion method from res.A.ravel() to res.toarray().ravel() and updating the SPDX copyright header year range from 2020-2025 to 2020-2026.

Changes

Sparse utilities update

Layer / File(s)	Summary
Sparse-to-dense array conversion python/cuml/cuml/_thirdparty/sklearn/utils/sparsefuncs.py	Changed sparse result conversion method in _min_or_max_axis from res.A.ravel() to res.toarray().ravel(), and updated SPDX copyright header year range to 2020-2026.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

🚥 Pre-merge checks | ✅ 3 | ❌ 2

❌ Failed checks (1 warning, 1 inconclusive)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.
Description check	❓ Inconclusive	No pull request description was provided by the author, making it impossible to verify relevance to the changeset.	Add a description explaining the deprecated cupy 14.1 functionality being addressed and why the sparse matrix conversion change was necessary.

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title 'Avoid deprecated functionality in cupy 14.1' is directly related to the changeset, which updates SPDX headers and replaces deprecated sparse matrix conversion method.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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[csadorf]

/merge