Update CI to use rust based tpc-h data generator

[timsaucer]

Is your feature request related to a problem or challenge? Please describe what you are trying to do.

Now that we have a new rust based tpc-h data generator, we should use this for our CI system

Describe the solution you'd like

https://datafusion.apache.org/blog/2025/04/10/fastest-tpch-generator/

The above post describes the new generator and how to access it. We should update our CI pipeline to use this. Also, the examples scripts should be updated as well.

[kevinjqliu]

theres also a python package available https://github.com/clflushopt/tpchgen-rs?tab=readme-ov-file#install-using-python