fix: add changelog

Signed-off-by: Shivanshu Raj Shrivastava <[email protected]>

Author: shivanshuraj1333

CHANGELOG.md

@@ -13,7 +13,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
-- `opentelemetry-instrumentation-botocore` Add support for GenAI user events and lazy initialize tracer
+- `opentelemetry-instrumentation-celery` Populate both origin and hostname correctly to span attributes 
+  ([#3170](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/3170))
+
+- `opentelemetry-instrumentation-botocore` Flatten span attributed 
   ([#3258](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/3258))
 - `opentelemetry-instrumentation-botocore` Add support for GenAI system events
   ([#3266](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/3266))