docs: Increase version to 1.9.0

Author: daniel-jones-dev

CHANGELOG.md

@@ -5,7 +5,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 
-## [Unreleased]
+## [1.9.0] - 2024-09-17
 ### Added
 * Added `$billedCharacters` to the translate text response.
 
@@ -159,7 +159,7 @@ Stable release.
 Initial version.
 
 
-[Unreleased]: https://github.com/DeepLcom/deepl-php/compare/v1.8.0...HEAD
+[1.9.0]: https://github.com/DeepLcom/deepl-php/compare/v1.8.0...v1.9.0
 [1.8.0]: https://github.com/DeepLcom/deepl-php/compare/v1.7.2...v1.8.0
 [1.7.2]: https://github.com/DeepLcom/deepl-php/compare/v1.7.1...v1.7.2
 [1.7.1]: https://github.com/DeepLcom/deepl-php/compare/v1.7.0...v1.7.1

VERSION

@@ -1 +1 @@
-1.8.0
+1.9.0

src/Translator.php

@@ -17,7 +17,7 @@ class Translator
     /**
      * Library version.
      */
-    public const VERSION = '1.8.0';
+    public const VERSION = '1.9.0';
 
     /**
      * Implements all HTTP requests and retries.