chore: release version 12.0.0 (#1353)

* feat: release version 11.0.1

* chore: adapt to breaking change

* feat: release version 11.0.1

* fix: remove duplicate headline

Author: JohannesWesch

CHANGELOG.md

@@ -11,10 +11,14 @@
 ### Deprecations
 ...
 
+### Breaking Changes
+...
+
+## 12.0.0
 ### Breaking Changes
 - `StudioClient` raises `ValueError` when instantiated with project name that belongs to multiple projects.
 
-### 11.0.0
+## 11.0.0
 ### Breaking Changes
 - `QdrantInMemoryRetriever` and `HybridQdrantInMemoryRetriever` now use `pharia-1-embedding-4608-control` as embedding model with an embedding size of 4608.