Narwhals v1.9.1

Changes

✨ Enhancements

• feat: Series.str.to_datetime (#1131)
• feat: make typing available under narwhals.stable.v1 (#1130)
• feat: add nulls_last kw in dataframe sort (#1124)

🐞 Bug fixes

• fix: Fix DataFrame.__getitem__ when slicing with tuple and null slice (#1123)

📖 Documentation

• docs: add Ibis to "related projects" (#1126)
• docs: correct python bytes description (#1115)
• docs: fix some docs issues (#1114)
• docs: assorted docs updates (#1109)

🛠️ Other improvements

• ci: add py-shiny to downstream tests (#1132)
• test: xfail test_actual_object for cuDF (#1129)
• test: xfail tz_aware test for cuDF (#1118)
• test: xfail empty string test in test_unpivot (#1113)

Thank you to all our contributors for making this release possible!
@FBruzzesi, @LiamConnors, @MarcoGorelli and @raisadz