Address sklearn device issues

[snarayan21]

What does this PR do?

Sklearn had a regression with cpu device detection that was causing daily tests to fail for the past month. Since sklearn is only used in testing, we pin sklearn under dev dependencies until they release a new version of the package.

See scikit-learn/scikit-learn#29107

What issue(s) does this change relate to?

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[mvpatel2000]

One for the ages