Narwhals v1.5.1

Changes

✨ Enhancements

• feat: write_csv (#832)
• feat: support dtype and copy in DataFrame.array (#826)
• feat: allow for non-string columns in select for pandas backend (#828)

🐞 Bug fixes

• fix: improve validate columns (#829)

Thank you to all our contributors for making this release possible!
@DeaMariaLeon and @MarcoGorelli