feat(*): Prepare 0.21.0

Author: julienloizelet

CHANGELOG.md

@@ -5,6 +5,11 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
 
+## [0.21.0] - 2022-04-15
+
+### Changed
+- Change allowed versions of `symfony/cache` package
+
 ## [0.20.1] - 2022-04-07
 
 ### Added

src/Constants.php

@@ -20,7 +20,7 @@ class Constants
     public const DEFAULT_LAPI_URL = 'http://localhost:8080';
 
     /** @var string The last version of this library */
-    public const VERSION = 'v0.20.1';
+    public const VERSION = 'v0.21.0';
 
     /** @var string The user agent used to send request to LAPI */
     public const BASE_USER_AGENT = 'PHP CrowdSec Bouncer/'.self::VERSION;