Narwhals v1.17.0

Changes

✨ Enhancements

• feat: read_csv (#1551)
• feat: Adding dataframe estimated size (#1549)
• enh: nw.dependencies.is_narwhals_dataframe / nw.dependencies.is_narwhals_lazyframe / nw.dependencies.is_narwhals_series (#1550)
• feat: ListNamespace.len() for Expr and Series (#1536)

🐞 Bug fixes

• fix: return Python scalar for Series.getitem when pyarrow-backed (like Polars does) (#1554)
• fix: .list namespace should preserve pandas index (#1538)

📖 Documentation

• docs: Add a docstring example in narwhals.dtypes for Datetime (#1544)

🛠️ Other improvements

• ci: temporary pins to get CI green (#1552)
• ci: actually test against pandas nightly, don't filter "copy is deprecated" warnings (#1547)
• chore: avoid unnecessary branching on pl version in pln.mean (#1543)
• ci: fix template name (#1540)
• ci: try using "unrelease" version-template for release drafter (#1539)
• chore: rename series and expr to _compliant for Arrow, Polars, and Dask (#1537)
• ci: actually test against pandas nightly, don't filter "copy is deprecated" warnings (#1547)

Thank you to all our contributors for making this release possible!
@AlessandroMiola, @DeaMariaLeon, @FBruzzesi, @Machele-codez, @MarcoGorelli, @anopsy, @marvinl803, @olp-cs and @raisadz