Beta — let others start using the code

There are a few more things to add and test before rolling 2025.1, but with the new data model changes I'm going to call it betea.

What's Changed

• Separate PipelineBuilder from Pipeline and update run api by @mdekstrand in #606
• Re-add unnormalized DCG metric by @mdekstrand in #608
• Add ARM and Windows vanilla Python to CI runs by @mdekstrand in #609
• Implement data set builders and the new entity/relationship model by @mdekstrand in #610
• Simplify training history components with new dataset by @mdekstrand in #612
• Make vocabularies immutable and stop using copy() by @mdekstrand in #611
• Tweaks for live class demo by @mdekstrand in #613

Full Changelog: v2025.0.0a6...v2025.1.0b1