typo: update CHANGELOG.md

Author: mdcg

CHANGELOG.md

@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Unreleased
 
+- Standardizing timeout calculation in measurement consumer collect to nanoseconds
+  ([#4074](https://github.com/open-telemetry/opentelemetry-python/pull/4074))
 - optional scope attributes for logger creation
   ([#4035](https://github.com/open-telemetry/opentelemetry-python/pull/4035))
 - optional scope attribute for tracer creation
@@ -1621,5 +1623,4 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   ([#3778](https://github.com/open-telemetry/opentelemetry-python/pull/3778))
 - Fix license field in pyproject.toml files
   ([#3803](https://github.com/open-telemetry/opentelemetry-python/pull/3803))
-- Standardizing timeout calculation in measurement consumer collect to nanoseconds
-  ([#4074](https://github.com/open-telemetry/opentelemetry-python/pull/4074))
+