[Bug] The "create_random_array" function does not respect input's timezone

[niebayes]

If we instead input a field of the timestamp type having an associated timezone, the create_random_array function fails and produces the following error:

InvalidArgumentError("column types must match schema types, expected Timestamp(Second, Some(\"+00:00\")) but found Timestamp(Second, None)" at column index 120

See:

arrow-rs/arrow/src/util/data_gen.rs

Lines 121 to 137 in 9bbbb28

	Timestamp(unit, _) => {
	match unit {
	TimeUnit::Second => Arc::new(create_random_temporal_array::<TimestampSecondType>(
	size,
	primitive_null_density,
	)),
	TimeUnit::Millisecond => Arc::new(create_random_temporal_array::<
	TimestampMillisecondType,
	>(size, primitive_null_density)),
	TimeUnit::Microsecond => Arc::new(create_random_temporal_array::<
	TimestampMicrosecondType,
	>(size, primitive_null_density)),
	TimeUnit::Nanosecond => Arc::new(create_random_temporal_array::<
	TimestampNanosecondType,
	>(size, primitive_null_density)),
	}
	}

[niebayes]

I would like to file a PR for this bug.