Deterministic Dictionary testing in CometFuzzTestSuite

[mbutrovich]

What is the problem the feature request solves?

#1697 exposed an issue in the random data generation: depending on RNG you can get Dictionary encoded values when written to Parquet, which can result in different paths being exercised.

Describe the potential solution

I tested this locally, but we could modify the generation to use a lower cardinality on some columns to force dictionary encoding.

Additional context

No response