python: add back `pyiceberg[pyarrow]` for test dep

this is just a tracking issue Context: https://github.com/apache/iceberg-rust/pull/2442/changes#diff-bf903f17157a753e10c075d464383a2e36fc657641d17673f054239f8d1a3999R66-R69 On pyiceberg side, we removed the circular dep, https://github.com/apache/iceberg-python/issues/3356 next pyiceberg release (0.12) should have this fix and we can add back `pyiceberg[pyarrow]`