Allow mapping "Release name" to a Jira Label field

Currently mapping the Aha! "Release name" field to a Jira Label (type: string) field is not supported. While the team is able to map the field to a text field in Jira, it has limitations for querying and plotting chart.

This idea is to support mapping of the "Release name" field to a Jira Label field in order to resolve limitations around querying and plotting charts.