fix license header

Author: sebsto

scripts/check-doc.sh

@@ -1,6 +1,19 @@
 #!/bin/bash
 ##===----------------------------------------------------------------------===##
 ##
+## This source file is part of the SwiftAWSLambdaRuntime open source project
+##
+## Copyright (c) 2025 Apple Inc. and the SwiftAWSLambdaRuntime project authors
+## Licensed under Apache License v2.0
+##
+## See LICENSE.txt for license information
+## See CONTRIBUTORS.txt for the list of SwiftAWSLambdaRuntime project authors
+##
+## SPDX-License-Identifier: Apache-2.0
+##
+##===----------------------------------------------------------------------===##
+##===----------------------------------------------------------------------===##
+##
 ## This source file is part of the Swift.org open source project
 ##
 ## Copyright (c) 2024 Apple Inc. and the Swift project authors