Reorder config groups for better documentation

Author: gsmet

extensions/amazon-dynamodb/runtime/src/main/java/io/quarkus/dynamodb/runtime/DynamodbConfig.java

@@ -13,18 +13,18 @@ public class DynamodbConfig {
     @ConfigItem
     public boolean enableEndpointDiscovery;
 
-    /**
-     * AWS service configurations
-     */
-    @ConfigItem
-    public AwsConfig aws;
-
     /**
      * SDK client configurations
      */
     @ConfigItem(name = ConfigItem.PARENT)
     public SdkConfig sdk;
 
+    /**
+     * AWS service configurations
+     */
+    @ConfigItem
+    public AwsConfig aws;
+
     /**
      * Apache HTTP client transport configuration
      */