Metadata file missing in the import accounting transaction data file

Summary: We've generated and validated zip files (header, line, metadata files) that successfully loaded into cloud ERP dev env; however, when using those same zip files to load into a different target ERP env, we are getting an error that the metadata file is missing.

You must include the metadata file in the import accounting transaction data file and compress it to a Zip file. (XLA-871187)

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