Upgrade pyarrow to version 21

[willm]

Is your idea related to a problem? Please describe.
Within our project, we use pyarrow and awswrangler. We've encountered a bug in version 20 of pyarrow when you have a schema with a column containing a complex type. This is fixed in version 21 however we get an error about pyarrow 21 not being compatible with awswrangler

Describe the solution you'd like
AWS wrangler to upgrade to pyarrow 21 so that we can use this version everywhere and fix the bug

P.S. Please do not attach files as it's considered a security risk. Add code snippets directly in the message body as much as possible.