Add 1.2.0 changelog title

Author: Jean85

CHANGELOG.md

@@ -6,6 +6,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## Unreleased
  * ...
+
+## 1.2.0 [2023-04-03]
  * Drop support to PHP 7.3
  * Drop support to EOL Symfony versions (3.x, 4.0 to 4.3, 5.0 to 5.3)