Prepare the 3.22.1 release

CHANGELOG

@@ -1,4 +1,4 @@
-# 3.22.1 (2025-XX-XX)
+# 3.22.1 (2025-11-16)
 
  * Add support for Symfony 8
 

src/Environment.php

@@ -43,12 +43,12 @@ use Twig\TokenParser\TokenParserInterface;
  */
 class Environment
 {
-    public const VERSION = '3.22.1-DEV';
+    public const VERSION = '3.22.1';
     public const VERSION_ID = 32201;
     public const MAJOR_VERSION = 3;
     public const MINOR_VERSION = 22;
     public const RELEASE_VERSION = 1;
-    public const EXTRA_VERSION = 'DEV';
+    public const EXTRA_VERSION = '';
 
     private $charset;
     private $loader;