Enable stats collection for nested fields and use write.metadata.metrics.max-inferred-column-defaults to control stats growth

### Feature Request / Improvement

I recently discovered that full stats collection (i.e. `lower_bounds`/`upper_bounds`) is explicitly [disabled](https://github.com/apache/iceberg-python/blob/7acdb12f5239594e593f2822de75c7a4c669f52f/pyiceberg/io/pyarrow.py#L2220-L2223) in PyIceberg for nested (i.e. struct child) fields.

This change was made in [this PR](https://github.com/apache/iceberg/pull/7831) and specifically [this commit](https://github.com/apache/iceberg/pull/7831/commits/6f7bd987e50d4978aeae333d759e34422f7cfb78).

It seems that this change may have been made to limit the number of fields whose stats are collected when default-full stats collection is enabled. However, after discussion it seems that simply adding support for the `write.metadata.metrics.max-inferred-column-defaults` table [property](https://iceberg.apache.org/docs/nightly/configuration/#write-properties) would be the preferred way to control stats growth. If this is implemented, re-enabling stats collection for nested fields should be a non-issue.

Stats collection for nested struct fields is important for schemas like [GeoParquet](https://geoparquet.org/releases/v1.1.0/) which store important primitive fields (in this case, bounding box xmin, ymin, xmax, ymax) using structs.

See also [this slack thread](https://apache-iceberg.slack.com/archives/C029EE6HQ5D/p1762221916113919) for discussion.

pyiceberg/io/pyarrow.py の、ネストされたフィールドの統計情報を無効にしているリンク先の行の周辺から始め、次に write.metadata.metrics.max-inferred-column-defaults がどのように処理されているかをたどってください。ネストされた struct フィールドで下限と上限を収集でき、テーブルプロパティによって推論された列の統計情報の増加が制御されるようになれば完了です。近くに見つかる場合は、既存の統計情報関連のテストを使って両方の動作を検証してください。

索引モデルが issue の本文から書いたものです。