IDF5.0 support: update changelog

Signed-off-by: Simone Orru <simone.orru@secomind.com>

Author: sorru94

CHANGELOG.md

@@ -4,6 +4,10 @@ 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).
 
+## [0.7.0] - Unreleased
+### Added
+- Add support to ESP-IDF v5.0.
+
 ## [0.5.2] - 2022-06-22
 
 ## [0.5.1] - 2022-06-01
@@ -15,4 +19,4 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [0.5.0] - 2022-03-22
 ### Added
-- Initial Edgehog release
+- Initial Edgehog release.