update CHANGELOG.md

Author: herin049

CHANGELOG.md

@@ -24,6 +24,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   ([#5076](https://github.com/open-telemetry/opentelemetry-python/pull/5076))
 - `opentelemetry-semantic-conventions`: use `X | Y` union annotation
   ([#5096](https://github.com/open-telemetry/opentelemetry-python/pull/5096))
+- `opentelemetry-sdk`: make resource detector ordering deterministic
+  ([#5120](https://github.com/open-telemetry/opentelemetry-python/pull/5120))
 
 
 ## Version 1.41.0/0.62b0 (2026-04-09)