Allow users to enable dictionary column reads from parquet files

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

_No response_

### Describe the solution you'd like

Add a config flag that lets users opt in to reading Parquet string columns as Arrow `DictionaryArray` instead of plain `Utf8`.

This config should be threaded through arrow-rs to parquet reader configs.

**This config should not just convert any given string column into a dictionary array. It should merely give the engine the option to interpret string columns as dictionary arrays if it chooses to.**

### Describe alternatives you've considered

_No response_

### Additional context

#24111