fixed a linter issue

Author: scmacdon

.tools/weathertop/backend/src/main/java/com/weathertop/lambda/HandlerHistoricalSDK.java

@@ -1,3 +1,5 @@
+// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
 package com.weathertop.lambda;
 
 import com.amazonaws.services.lambda.runtime.Context;

.tools/weathertop/backend/src/main/java/com/weathertop/service/EventBridgeScheduler.java

@@ -1,3 +1,6 @@
+// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+
 package com.weathertop.service;
 
 import software.amazon.awssdk.regions.Region;