update changelog with latest changes

Author: Release bot

CHANGELOG.md

@@ -25,6 +25,7 @@
 * **layer:** upgrade to 1.27.0
 * **layer:** upgrade to 1.27.0
 * **parser:** minor grammar fix ([#1427](https://github.com/awslabs/aws-lambda-powertools-python/issues/1427))
+* **validation:** snippets split, improved, and lint ([#1449](https://github.com/awslabs/aws-lambda-powertools-python/issues/1449))
 
 ## Features
 
@@ -42,6 +43,7 @@
 * **deps:** bump pydantic from 1.9.1 to 1.9.2 ([#1448](https://github.com/awslabs/aws-lambda-powertools-python/issues/1448))
 * **deps-dev:** bump types-requests from 2.28.7 to 2.28.8 ([#1423](https://github.com/awslabs/aws-lambda-powertools-python/issues/1423))
 * **tests:** refactor E2E test mechanics to ease maintenance, writing tests and parallelization ([#1444](https://github.com/awslabs/aws-lambda-powertools-python/issues/1444))
+* **tests:** refactor E2E tracer to ease maintenance, writing tests and parallelization ([#1457](https://github.com/awslabs/aws-lambda-powertools-python/issues/1457))
 
 
 <a name="v1.27.0"></a>