mgmt, loadtesting, prepare release (Azure#32849)

Author: weidongxu-microsoft

sdk/loadtesting/azure-resourcemanager-loadtesting/CHANGELOG.md

@@ -1,5 +1,5 @@
 # Release History
 
-## 1.0.0-beta.1 (Unreleased)
+## 1.0.0-beta.1 (2023-01-10)
 
 - Azure Resource Manager LoadTest client library for Java. This package contains Microsoft Azure SDK for LoadTest Management SDK. LoadTest client provides access to LoadTest Resource and it's status operations. Package tag package-2022-12-01. For documentation on how to use this package, please see [Azure Management Libraries for Java](https://aka.ms/azsdk/java/mgmt).