update changelog with latest changes

Author: Release bot

CHANGELOG.md

@@ -17,13 +17,17 @@
 
 * **ci:** dispatch GitHub analytics action ([#2161](https://github.com/awslabs/aws-lambda-powertools-python/issues/2161))
 * **event_sources:** Add __str__ to Data Classes base DictWrapper ([#2129](https://github.com/awslabs/aws-lambda-powertools-python/issues/2129))
+* **metrics:** add flush_metrics() method to allow manual flushing of metrics ([#2171](https://github.com/awslabs/aws-lambda-powertools-python/issues/2171))
 
 ## Maintenance
 
 * add dummy reusable dispatch analytics job
+* **deps-dev:** bump aws-cdk from 2.76.0 to 2.77.0 ([#2174](https://github.com/awslabs/aws-lambda-powertools-python/issues/2174))
+* **deps-dev:** bump mypy-boto3-lambda from 1.26.115 to 1.26.122 ([#2172](https://github.com/awslabs/aws-lambda-powertools-python/issues/2172))
 * **deps-dev:** bump cfn-lint from 0.77.2 to 0.77.3 ([#2165](https://github.com/awslabs/aws-lambda-powertools-python/issues/2165))
 * **deps-dev:** bump mkdocs-material from 9.1.6 to 9.1.8 ([#2162](https://github.com/awslabs/aws-lambda-powertools-python/issues/2162))
 * **deps-dev:** bump importlib-metadata from 6.5.0 to 6.6.0 ([#2163](https://github.com/awslabs/aws-lambda-powertools-python/issues/2163))
+* **deps-dev:** bump mypy-boto3-xray from 1.26.11.post1 to 1.26.122 ([#2173](https://github.com/awslabs/aws-lambda-powertools-python/issues/2173))
 
 
 <a name="v2.14.1"></a>