chore(doc): add go-api update to changelog (#109)

Author: peknur

CHANGELOG.md

@@ -6,6 +6,9 @@ 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]
+### Changed
+- New go-api version v4.3.0
+
 ### Fixed
 - Improved errors relating to argument resolver failures