Update the changelog

Author: OlegZv

CHANGELOG.md

@@ -17,6 +17,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
  ([#3100](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/3100))
 - Add support to database stability opt-in in `_semconv` utilities and add tests
  ([#3111](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/3111))
+- `opentelemetry-instrumentation-redis` Add support for redis client-specific instrumentation.
+ ([#3143](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/3143))
 
 ### Fixed