chore(deps): update azure-resourcemanager-containerservice version

- Update dependency version from 2.56.0 to 2.57.0 in README.md

Author: v-huizhu2

sdk/containerservice/azure-resourcemanager-containerservice/README.md

@@ -18,7 +18,7 @@ For documentation on how to use this package, please see [Azure Management Libra
 <dependency>
     <groupId>com.azure.resourcemanager</groupId>
     <artifactId>azure-resourcemanager-containerservice</artifactId>
-    <version>2.56.0</version>
+    <version>2.57.0</version>
 </dependency>
 ```
 [//]: # ({x-version-update-end})