Have array_to_json_array support FixedSizeList

[dadepo]

Is your feature request related to a problem or challenge? Please describe what you are trying to do.
Using array_to_json_array to convert an arrow ArrayRef into a Vec of Serde JSON fails if the ArrayRef is FixedSizeList

Looking at the source here it looks like it is indeed missing handling of FixedSizeList

Describe the solution you'd like
It should be possible to use array_to_json_array to convert ArrayRef into a Vec of Serde JSON

Version: arrow-json = "39.0.0"

[alamb]

Related discussion: apache/datafusion#6446

[alamb]

label_issue.py automatically added labels {'arrow'} from #4361