Remove scikit-learn constraint on coremltools 6.0

[glenn-jocher]

Signed-off-by: Glenn Jocher [email protected]

🛠️ PR Summary

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🌟 Summary

Update to machine learning requirements list.

📊 Key Changes

• 🔧 Unpinned the version requirement for scikit-learn in requirements.txt.

🎯 Purpose & Impact

• ✨ This change allows for greater flexibility by not restricting to a specific version of scikit-learn, which can lead to better compatibility with other packages and fewer conflicts.
• 🔄 Users can benefit from the latest features and improvements in scikit-learn without the need to manually override the version requirement.
• 🔍 Developers may need to monitor compatibility with new versions of scikit-learn going forward, which could introduce breaking changes or require updates to the codebase.