fix(asset-server-plugin): Make nativeS3Configuration optional

packages/asset-server-plugin/src/s3-asset-storage-strategy.ts

@@ -49,7 +49,7 @@ export interface S3Config {
      * S3.Types.ClientConfiguration can be used after importing aws-sdk.
      * Using type `any` in order to avoid the need to include `aws-sdk` dependency in general.
      */
-    nativeS3Configuration: any;
+    nativeS3Configuration?: any;
 }
 
 /**