update changelog (#197)

Author: johannes-vogel

CHANGELOG.md

@@ -5,19 +5,13 @@ 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).
 
-## Version 0.12.0 - tbd
-
-### Added
+## Version 0.12.0 - 2025-05-05
 
 ### Changed
 
 - Bump `@graphiql/plugin-explorer` version to `^3`
 - Make error handling compatible with `@sap/cds` version `>=9`
-- Bump required `@sap/cds` version to `>=9`
-
-### Fixed
-
-### Removed
+- Bump required `@sap/cds` version to `>=9` which will be released in the near future
 
 ## Version 0.11.0 - 2024-07-30