Created debs and rpms should have a changelog

### Describe the feature or problem you’d like to solve
It'd be great if the created debs could have a changelog included

A clear and concise description of what the feature or problem is.
nfpm provides a mechanism to auto-generate changelogs in various formats
https://goreleaser.com/customization/changelog/

### Proposed solution
Include a changelog section in the [.goreleaser.yml](https://github.com/cli/cli/blob/trunk/.goreleaser.yml) file

### How will it benefit CLI and its users?
Changelogs which appear in debian packages can be automatically displayed by the `apt-listchanges` package at install time