docs(changelog): Clarify recent Azure Service Bus improvement (#4275)

Relates to #4262

Signed-off-by: Tom Kerkhove <kerkhove.tom@gmail.com>

CHANGELOG.md

@@ -78,7 +78,7 @@ Here is an overview of all new **experimental** features:
 - **General**: Fix regression in fallback mechanism ([#4249](https://github.com/kedacore/keda/issues/4249))
 - **General**: Prevent a panic that might occur while refreshing a scaler cache ([#4092](https://github.com/kedacore/keda/issues/4092))
 - **Azure Service Bus Scaler:** Use correct auth flows with pod identity ([#4026](https://github.com/kedacore/keda/issues/4026)|[#4123](https://github.com/kedacore/keda/issues/4123))
-- **Azure Service Bus Scaler:**: Change way of get service bus namespace  ([#4262](https://github.com/kedacore/keda/issues/4262))
+- **Azure Service Bus Scaler:**: Improve way clients are created to reduce amount of ARM requests ([#4262](https://github.com/kedacore/keda/issues/4262))
 - **Cassandra Scaler**: Checking whether the port information is entered in the ClusterIPAddres is done correctly. ([#4110](https://github.com/kedacore/keda/issues/4110))
 - **CPU Memory Scaler** Store forgotten logger ([#4022](https://github.com/kedacore/keda/issues/4022))
 - **Datadog Scaler**: Return correct error when getting a 429 error ([#4187](https://github.com/kedacore/keda/issues/4187))