update CHANGELOG.md

Author: davidgonor1408

CHANGELOG.md

@@ -12,6 +12,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   ([#1706](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/1706))
 - `opentelemetry-instrumentation-pymemcache` Update instrumentation to support pymemcache >4
   ([#1764](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/1764))
+- `opentelemetry-instrumentation-confluent-kafka` Add support for higher versions of confluent_kafka
+  ([#15](https://github.com/helios/opentelemetry-python-contrib/pull/15))
 
 ### Added