docs: add CHANGELOG entry for flake8-comprehensions rule enablement

Signed-off-by: Yosof Badr <23705518+YosofBadr@users.noreply.github.com>

Author: yosofbadr

CHANGELOG.md

@@ -30,6 +30,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   ([#5096](https://github.com/open-telemetry/opentelemetry-python/pull/5096))
 - Add WeaverLiveCheck test util
   ([#5088](https://github.com/open-telemetry/opentelemetry-python/pull/5088))
+- Enable ruff `flake8-comprehensions` (C4) rules and fix violations across the codebase
+  ([#5107](https://github.com/open-telemetry/opentelemetry-python/pull/5107))
 
 ## Version 1.41.0/0.62b0 (2026-04-09)