Update the changelog with the new suffix config support.

Author: patrickcarlohickman

CHANGELOG.md

@@ -5,6 +5,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+### Added
+- Added support for queue suffixes that was added in Laravel 7.x.
 
 ## [1.2.0] - 2020-06-30
 ### Added