Version 2.7.3

This release fixes an issue with Python 3.12 pulling in NumPy 2 pre-releases.

Fixes:

• Sample required error message #538
• hist.dask.new to match top-level package #563

Docs:

• Clarify sample term required for Mean storage #536

CI:

• Move to using Ruff Jupyter support #543
• Move to using Ruff formatter #544
• Group dependabot updates #554
• Use uv #564
• Add GitHub artifact attestations to package distribution #568
• Reduce update frequency #571