[Variant] Improve fuzz test for Variant

[klion26]

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

We added a fuzzy test for Variant in #7849. After that, we added some more Primitive Types(Time/TimestampNanos/UUID). This issue aims to enhance the fuzzy tests to cover these types.

Describe the solution you'd like

Add code to cover the fuzzy test for Time/Timestmapnanos/UUID type

Describe alternatives you've considered

Additional context

[klion26]

take

[alamb]

label_issue.py automatically added labels {'parquet-variant'} from #8200