chore(python): pin pyarrow version in typing job, adjust tests for pyarrow 24#3561

MarcoGorelli wants to merge 2 commits intonarwhals-dev:mainnarwhals-dev/narwhals:mainfrom

MarcoGorelli:pin-pyarrow-typingMarcoGorelli/narwhals:pin-pyarrow-typingCopy head branch name to clipboard