Prepare release 1.1.0

Author: Jean85

CHANGELOG.md

@@ -4,6 +4,9 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 ## Unreleased
+ * ...
+
+## 1.1.0 [2021-03-04]
  * Bump minimum PHP required version to 7.3 (#1)
  * Add PHP 8 support (#6)  
  * Add Symfony 5 support (#4)