Require JSONSchema for resource.data to be an array for tabular resource

[roll]

Overview

According to the standard in written form - https://specs.frictionlessdata.io/tabular-data-resource/#json-tabular-data

Here is a fix on the software level - https://github.com/frictionlessdata/frictionless-py/pull/1036/files - but I got confused on how we build JSONSchema for the specs to achieve the same here