Update CHANGELOG.md

Author: sasha-ishchuk

CHANGELOG.md

@@ -1,7 +1,7 @@
 # Changelog
 All notable changes to this project will be documented in this file.
 
-## [9.2.0](https://github.com/Backbase/stream-services/compare/9.2.0...9.3.0)
+## [9.3.0](https://github.com/Backbase/stream-services/compare/9.2.0...9.3.0)
 ### Changed
   - fix for NoSuchElementException (No value present) thrown while update data groups