chore: add entry on changelog

Author: Rodrigo-Novas

CHANGELOG.md

@@ -11,8 +11,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
-- `opentelemetry-instrumentation-kafka-python` Instrument temporary fork, kafka-python-ng
-  inside kafka-python's instrumentation
+- Deprecation of pkg_resource in favor of importlib.metadata
+  ([#2180](https://github.com/open-telemetry/opentelemetry-python-contrib/issues/2180))
+- `opentelemetry-instrumentation-kafka-python` Instrument temporary fork, kafka-python-ng inside kafka-python's instrumentation
   ([#2537](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/2537))
 
 ### Breaking changes