v0.7.1

What's Changed

• Fixed confidence_penalty by @tgaddair in #3158
• Fixed set explanations by @tgaddair in #3163
• Bump to hummingbird 0.4.8 by @tgaddair in #3165
• Unpin pyarrow by @tgaddair in #3171
• Make Horovod an optional dependency when using Ray by @tgaddair in #3172
• Cherry-pick sample ratio changes by @tgaddair in #3176
• Fix TorchVision channel preprocessing (#3173) by @geoffreyangus in #3178
• Bump Ludwig to v0.7.1 (#3179) by @tgaddair in #3180

Full Changelog: v0.7...v0.7.1