Uploads an OCI image to OCI object storage, and generates a
pre-authenticated request for the object, which can be used to import it
into custom images.
resp.IsResumable crashes if resp.MultipartUploadResponse == nil. This happens
for instance when authentication fails. Fix this by also checking the
MultipartUploadResponse field.
Signed-off-by: Ondřej Budai <ondrej@budai.cz>
