Improve NDV statistics for Parquet columns (parquet RLE & Dictionary array focus)

### Is your feature request related to a problem or challenge?

Deciding whether to dictionary-encode a column requires knowing its cardinality (NDV), Datafusion does support https://docs.rs/datafusion/latest/datafusion/common/struct.ColumnStatistics.html but we need to validate this.

### Describe the solution you'd like

Improve NDV statistics collection focused on Parquet, and get these stats into DataFusion in a form the optimizer can actually use (e.g. exposed on `ColumnStatistics`).

### Describe alternatives you've considered

_No response_

### Additional context

Direct sub-issue of #22891
piece of Epic : #24111

Start by validating DataFusion's existing ColumnStatistics path and tracing how Parquet RLE and dictionary-array statistics are collected. Read the context in issues #22891 and #24111. Done means improved NDV statistics are exposed through ColumnStatistics in a form the optimizer can use.

Written by the indexing model from the issue text.