Move changelog to new section

Signed-off-by: Phan Duc <[email protected]>

CHANGELOG.md

@@ -36,10 +36,6 @@ To learn more about active deprecations, we recommend checking [GitHub Discussio
 - [v1.1.0](#v110)
 - [v1.0.0](#v100)
 
-## Unreleased
-
-- **AWS Scalers**: Add support for override the AWS endpoint url. ([#3337](https://github.com/kedacore/keda/issues/3337))
-
 ### New
 
 - **General**: Expand Prometheus metric with label "ScalerName" to distinguish different triggers. The scaleName is defined per Trigger.Name ([#3588](https://github.com/kedacore/keda/issues/3588)
@@ -49,6 +45,7 @@ To learn more about active deprecations, we recommend checking [GitHub Discussio
 - **Azure Service Bus Scaler**: Add support for Shared Access Signature (SAS) tokens for authentication. ([#2920](https://github.com/kedacore/keda/issues/2920))
 - **Azure Service Bus Scaler:** Support regex usage in queueName / subscriptionName parameters. ([#1624](https://github.com/kedacore/keda/issues/1624))
 - **Selenium Grid Scaler:** Allow setting url trigger parameter from TriggerAuthentication/ClusterTriggerAuthentication ([#3752](https://github.com/kedacore/keda/pull/3752))
+- **AWS Scalers**: Add setting AWS endpoint url. ([#3337](https://github.com/kedacore/keda/issues/3337))
 
 ### Improvements