Polars: py-0.20.28 Release

⚠️ Deprecations

• Deprecate use_pyarrow parameter for to_numpy methods (#16391)

✨ Enhancements

• Add field expression as selector with an struct scope (#16402)
• Field expansion renaming (#16397)
• Respect index order in DataFrame.to_numpy also for non-numeric frames (#16390)
• add Expr.interpolate_by (#16313)
• Implement Struct support for Series.to_numpy (#16383)

🐞 Bug fixes

• Fix struct arithmetic schema (#16396)
• Handle non-Sequence iterables in filter (#16254)
• Fix don't panic on chunked to_numpy conversion (#16393)
• Don't check nulls before conversion (#16392)
• Add support for generalized ufunc with different size input and output (#16336)
• Improve cursor close behaviour with respect to Oracle "thick mode" connections (#16380)
• Fix DataFrame.to_numpy for Array/Struct types (#16386)
• Handle ambiguous/nonexistent datetimes in Series construction (#16342)
• Fix DataFrame.to_numpy for Struct columns when structured=True (#16358)
• Use strings to expose ClosedInterval in expr IR (#16369)

📖 Documentation

• Expand docstrings for to_numpy methods (#16394)
• Add a not about index access on struct.field (#16389)

Thank you to all our contributors for making this release possible! @MarcoGorelli, @alexander-beedie, @coastalwhite, @dangotbanned, @itamarst, @ritchie46, @stinodego and @wence-