Update the parquet thrift definitions

[alamb]

Is your feature request related to a problem or challenge? Please describe what you are trying to do.
The parquet format has been updates to include types such as Variant and Geometry

The parquet format is defined by thrift files that come from this repo https://github.com/apache/parquet-format and then the parquet repo contains auto-generated rust code to parse and serialize/deserialize those structures.

We are currently behind on the definition -- it would be great if we could update to the latest parquet-format

Describe the solution you'd like

Describe alternatives you've considered

1. Update the revision in regen.sh
2. Run regen.sh
3. Resolve any compilation errors
4. Check in the result

This PR from @etseidl has an example of how to do this:

• [Not for Merge] PoC implementation of PARQUET-2249: Introduce IEEE 754 total order #7408

Additional context
This will be a breaking API change so we will need to wait for the next major release

• Release arrow-rs / parquet Major version 56.0.0 (July 2025) #7395

However getting it ready would be good

[etseidl]

I would love to get the total order PR (apache/parquet-format#221) merged into the format before the next major release, but that may be wishful thinking.

In any event, I can take this on once it's open season on 56.0.0.