Update Changelog

Author: xrmx

CHANGELOG.md

@@ -15,6 +15,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - `opentelemetry-instrumentation` Fix client address is set to server address in new semconv
   ([#3354](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/3354))
+- `opentelemetry-instrumentation-botocore` Add support for GenAI tool events using Amazon Nova models and `InvokeModel*` APIs
+  ([#3385](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/3385))
 
 ## Version 1.31.0/0.52b0 (2025-03-12)