Abort an incomplete multipart upload process

Cancels an in-progress multipart upload operation and removes any parts
that have already been uploaded. Use this endpoint when you need to:

• Cancel an upload that is no longer needed
• Handle error conditions where the upload cannot be completed
• Clean up resources when an upload process is interrupted

All previously uploaded parts associated with the specified uploadId will be deleted,
and the upload ID will no longer be valid for future operations.