add changelog

Signed-off-by: emdneto <[email protected]>

Author: emdneto

CHANGELOG.md

@@ -19,7 +19,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   ([#3111](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/3111))
 - `opentelemetry-instrumentation-falcon` add support version to v4
   ([#3086](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/3086))
-
+- add python 3.13 to tox
+  ([#3134](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/3134))
 
 ### Fixed