[ARROW-8521] [Developer] Group Sub-task, Task, Test, and Wish issue types as "Improvement" in Changelog

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.0.0
• Component/s: Developer Tools
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/24690
• Assignee: Krisztian Szucs
• Reporter: Wes McKinney
• Created: 19/Apr/20 23:47
• Updated: 11/Jan/23 08:00
• Resolved: 15/Jul/20 20:24

Description

In my opinion this makes the changelog more readable. The "Wish" type in particular might cause people to not see improvements

Issue Links

• links to: GitHub Pull Request #7769