Polars: py-0.20.2 Release

🚀 Performance improvements

• ensure single expression evaluation for replace (#13147)
• drop the pyarrow conversion path in iter_rows; we can now do fully native conversion ~2-3x faster (#13122)

✨ Enhancements

• Move from GA to more privacy friendly framework (#13155)
• prune all/any_horizontals with single inputs (#13146)
• ensure we get cleaner logical plans with any/all_horizontal (#13144)

🐞 Bug fixes

• Fix comparison of categoricals (#13137)
• Use the name of the leftmost expression in horizontal operations (#13143)
• any_value should supports cast to boolean (#13125)
• Update offsets of null value correctly for all from_iter_xxx_trusted_len (#13132)
• fix neq for series cmp str (#13128)
• Fix off-by-one error in lit dtype determination for integers (#13129)
• fix category list builder append series with multiple chunks (#13116)

🛠️ Other improvements

• Fix release LTS CPU step (#13160)
• Use the name of the leftmost expression in horizontal operations (#13143)
• ensure we get cleaner logical plans with any/all_horizontal (#13144)
• Minor cleanup of PyO3 bindings (#13067)
• Update auto_explode param name to returns_scalar (#13119)
• Mark whether the current package is the LTS-CPU version (#13068)

Thank you to all our contributors for making this release possible! @alexander-beedie, @c-peters, @orlp, @reswqa, @ritchie46 and @stinodego