Java: Add release notes for release 5.14.0 (#1940)

* Add new release notes

* Update release-notes-0-to-14.mdx

* Update release-notes-0-to-14.mdx

---------

Co-authored-by: Alexander Dümont <[email protected]>

Author: bot-sdk-js

docs-java/release-notes/release-notes-0-to-14.mdx

@@ -1,3 +1,14 @@
+## 5.14.0 - November 08, 2024
+
+[All Release Changes](https://github.com/SAP/cloud-sdk-java/releases/tag/rel%2F5.14.0)
+
+### 📈 Improvements
+
+- Minor improvement on OpenAPI code generator to apply Javadoc on customized model class constructors.
+- Fix a TLS compatibility issue between the latest _Apache HttpClient 5_ and on-premise connectivity (via SAP Cloud Connector).
+- Stabilize ApacheHttpClient5 related API without changes.
+  The `@Beta` annotations are removed in most places and consuming applications no longer need to suppress warnings.
+
 ## 5.13.0 - September 27, 2024
 
 [All Release Changes](https://github.com/SAP/cloud-sdk-java/releases/tag/rel%2F5.13.0)