Narwhals v2.22.1

Changes

🐞 Bug fixes

• fix: preserve fireducks functionality (#3672)
• fix(polars): Backport is_close for Decimal dtype and join(how={"semi", "anti"}) on null's (#3660)
• fix: Include test data in sdist (#3665)

📦 Build system

• fix: Include test data in sdist (#3665)

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