allow guzzle dependency v7.3 for more backward compatibility

CHANGELOG.md

@@ -4,7 +4,11 @@ All notable changes to this project will be documented in this file.
 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](https://git.d3data.de/D3Private/linkmobility-php-client/compare/2.0.2...rel_2.x)
+## [Unreleased](https://git.d3data.de/D3Private/linkmobility-php-client/compare/2.0.3...rel_2.x)
+
+## [2.0.3](https://git.d3data.de/D3Private/linkmobility-php-client/compare/2.0.2...2.0.3) - 2022-12-26
+### Changed
+- allow Guzzle v7.3 for more backward compatibility
 
 ## [2.0.2](https://git.d3data.de/D3Private/linkmobility-php-client/compare/2.0.1...2.0.2) - 2022-07-28
 ### Changed

composer.json

@@ -23,7 +23,7 @@
     "require": {
         "php": "^7.3 || ~8.0.3",
         "beberlei/assert": "^3.3",
-        "guzzlehttp/guzzle": "^7.4",
+        "guzzlehttp/guzzle": "^7.3",
         "psr/http-message": "~1.0",
         "phlib/sms-length": "^2.0",
         "giggsey/libphonenumber-for-php": "^8.12.50",