refactor: eimplement truncate for duckdb using time_bucket#2703

IsaiasGutierrezCruz wants to merge 3 commits intonarwhals-dev:mainnarwhals-dev/narwhals:mainfrom

IsaiasGutierrezCruz:dev/reimplement_truncateIsaiasGutierrezCruz/narwhals:dev/reimplement_truncateCopy head branch name to clipboard