bump to v1.2.3 with partial changelog

Author: rlindner81

CHANGELOG.md

@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 <!-- order is REMOVED, CHANGED, ADDED, FIXED -->
 
+## v1.2.3 - tbd
+
+- use proper cds syntax to get service operations (by [johannes-vogel](https://github.com/johannes-vogel))
+
 ## v1.2.2 - 2024-11-14
 
 ### Changed