Use RFC3339 style timestamps in arrow-json

[JayjeetAtGithub]

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

arrow-json needs to use RFC3339 style timestamps for timestamps with timezones as already done in arrow-csv. We intend to fix the upstream InfluxDB IOX bug https://github.com/influxdata/influxdb_iox/issues/2095.

Describe the solution you'd like

The array_value_to_string function (from arrow-cast) already supports RFC3339 style timestamps. We would use this function inside arrow-json to change to writing RFC3339 style timestamps while writing out record batches to JSON files. The array_value_to_string function will be modified a bit to print a trailing Z, when the timestamp is in UTC.

Describe alternatives you've considered
We could also implement a handle_timestamp helper function as present in arrow-csv inside arrow-json, but that would be a duplication of code.

Additional context
We intend to use array_value_to_string across arrow-csv, arrow-json, and arrow-pretty for consistency in the RFC3339 timestamp implementation in the near future.

[tustvold]

label_issue.py automatically added labels {'arrow'} from #3417