Python Polars 0.16.16

🐞 Bug fixes

• ensure k is lower than height (#7779)
• raise error on invalid categorical cast (#7686)
• raise error on attempt to set invalid Datetime or Duration dtype timeunit (#7768)

🛠️ Other improvements

• Add "typos" as spell checking lint (#7759)
• fix typos (#7756)

Thank you to all our contributors for making this release possible!
@alexander-beedie, @ghuls, @ritchie46 and @universalmind303