build(deps-dev): bump auto-changelog from 2.1.0 to 2.2.0 (#221)

Bumps [auto-changelog](https://github.com/CookPete/auto-changelog) from 2.1.0 to 2.2.0.
- [Release notes](https://github.com/CookPete/auto-changelog/releases)
- [Changelog](https://github.com/CookPete/auto-changelog/blob/master/CHANGELOG.md)
- [Commits](cookpete/auto-changelog@v2.1.0...v2.2.0)

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>