feature request: Support using GitHub's release notes generator

[ankush]

trafficstars

Github's create release API supports use of their release notes generator by passing generate_release_notes boolean value.

• https://docs.github.com/en/repositories/releasing-projects-on-github/automatically-generated-release-notes
• https://docs.github.com/en/rest/releases/releases#create-a-release

A separate API to generate notes is also available:

https://docs.github.com/en/rest/releases/releases#generate-release-notes-content-for-a-release