Narwhals v1.0.3

Changes

• ci: ignore em101, make random ci more robust (maybe) (#458)
• Refactor: Re enable and fix Ruff's ICN001 Check (#444)
• Refactor: Re enable and fix Ruff's FBT003 Check (#449)
• Refactor: Re enable and fix Ruff's ERA001 Check (#448)
• Refactor: Re enable and fix Ruff's PT011 Check (#450)
• Refactor: Re enable and fix Ruff's PD003 and PD009 Checks (#451)
• Refactor: Re enable and fix Ruff's TD Checks (#452)
• Refactor: Re enable and Ruff's ARG check globally (#441)
• Refactor: Re enable and fix Ruff's DTZ Checks (#453)
• Refactor: Re enable and fix Ruff's PLR5501 Check (#454)

✨ Enhancements

• feat: add to_lowercase and to_uppercase to PandasExpr.str namespace (#455)
• enh: pandas-like semi join (#439)

🛠️ Other improvements

• chore: Rename pandas objects (#460)
• chore: rename some internal attributes for clarity (#459)
• ci: pin Numpy version in random CI versions job (#456)

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