[CC-2654 (#217)

release-3-13-1] Prepare release 3.13.1

Author: Ryouzanpaku

CHANGELOG.md

@@ -5,6 +5,12 @@ 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).
 
+## [3.13.1](https://github.com/unzerdev/php-sdk/compare/3.13.0..3.13.1)
+
+### Added
+
+* Added support for payment method `Wero`.
+
 ## [3.13.0](https://github.com/unzerdev/php-sdk/compare/3.12.0..3.13.0)
 
 ### Changed

src/Unzer.php

@@ -58,7 +58,7 @@ class Unzer implements
     public const BASE_URL = 'api.unzer.com';
     public const API_VERSION = ApiVersions::V1;
     public const SDK_TYPE = 'UnzerPHP';
-    public const SDK_VERSION = '3.13.0';
+    public const SDK_VERSION = '3.13.1';
 
     /** @var string $key */
     private $key;