Narwhals v1.26.0

Changes

• ci: validate tpch query results (#1971)
• ci: add pointblank in downstream test (#1956)
• ci: add Validoopsie to downstream tests (#1973)
• chore(typing): fix _from_compliant_dataframe type ignore (#1969)
• fix(typing): resolve remaining utils.py warnings (#1968)
• test: Add new_streaming (#1898)
• fix(typing): add missing Series._level annotation (#1967)
• ci: fix plotly tests location (#1965)

✨ Enhancements

• feat: Series.hist (#1859)
• feat: catch Polars exceptions, unify exception raising more (#1918)
• feat: improving array casting (#1865)
• feat: add datetime selector (#1822)
• feat: add Schema.to_(arrow|pandas|polars) (#1924)

🐞 Bug fixes

• fix: implement casting to Int128 (#1984)
• fix: fix type __get_item__ (#1958)
• fix(typing): Backport from_native overload fixes to v1 (#1953)
• fix(typing): Backport use IntoDataFrameT in to_native to v1 (#1954)

📖 Documentation

• docs: add Schema.to_(arrow|pandas|polars) (#1980)
• RFC, chore: shrink series module docstrings (#1976)
• chore: shrink functions module docstrings (#1974)
• docs: add docstring guidelines to CONTRIBUTING.md (#1957)

🛠️ Other improvements

• chore: minor series.py fixes, dedupe a little (#1982)
• chore(typing): resolve _arrow.dataframe warnings (#1983)
• chore(typing): add np.ndarray aliases (#1977)
• chore: widen parse_version to accept packages (#1975)
• RFC, chore: shrink series module docstrings (#1976)
• chore: shrink functions module docstrings (#1974)
• chore(typing): fix remaining functions, series warnings (#1970)
• fix: missing __getitem__ type fixes (#1963)
• chore(typing): add guards is_compliant_* (+ friends) (#1955)
• chore: reduce duplication, implement more methods at the Narwhals level rather than at the compliant level, fix CI from Ibis release (#1960)

Thank you to all our contributors for making this release possible!
@EdAbati, @FBruzzesi, @IsaiasGutierrezCruz, @MarcoGorelli, @akmalsoliev, @camriddell, @dangotbanned and @luke396