Apply version 1.7.0 in CHANGELOG.md

Author: mihail-varbanov

CHANGELOG.md

@@ -5,7 +5,9 @@ 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
-<!-- The next version number should be the version from pubspec.yaml - 1.7.0 -->
+<!-- The next version number should be the version from pubspec.yaml -->
+
+## [1.7.0] - 2024-07-15
 ### Changed
 - Upgrade to Flutter 3.22.2.
 - Upgrade to Flutter 3.19.0 [#435](https://github.com/rokwire/app-flutter-plugin/issues/435).