Export `pyo3` for `pyarrow`

**Is your feature request related to a problem or challenge? Please describe what you are trying to do.**

The current version of `pyo3` and the version that `pyarrow` depend on do not agree and are not compatible, leaving users to have to investigate which version of `pyo3` to include.

**Describe the solution you'd like**

`pyarrow` could export the version of `pyo3` it requires.

Start by locating the dependency declarations and package metadata for pyarrow and pyo3 in the repository. Verify how pyarrow exposes its required pyo3 version, then run the relevant dependency or packaging checks to confirm that users receive a compatible version without manual investigation.

Written by the indexing model from the issue text.