Fix changelog

Author: rocky-ken

CHANGELOG.md

@@ -19,7 +19,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   ([#2537](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/2537))
 - `opentelemetry-instrumentation-asgi`, `opentelemetry-instrumentation-fastapi` Add ability to disable internal HTTP send and receive spans
   ([#2802](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/2802))
-- `opentelemetry-instrumentation-asgi`, Add fallback decoding for ASGI headers
+- `opentelemetry-instrumentation-asgi` Add fallback decoding for ASGI headers
   ([#2837](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/2837))
 
 ### Breaking changes