Fix: tempfile without flush

Author: vawsgit

scripts/sdlc/idp-cli/src/idp_cli/util/s3_util.py

@@ -1,6 +1,6 @@
-# Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-# SPDX-License-Identifier: MIT-0
-
+# Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+# SPDX-License-Identifier: MIT-0
+
 import os
 import io
 from typing import Dict
@@ -279,6 +279,7 @@ def put_zip(bucket_name: str, object_name: str, relative_path: str):
                             file_path = os.path.join(root, file)
                             zipf.write(file_path, os.path.relpath(file_path, absolute_path))
 
+                temp_zip.flush()
                 temp_zip_path = temp_zip.name
 
             # Upload the ZIP file