Indico: Get file checksums from API
When this is merged: https://github.com/indico/indico/pull/5169 and Indico released, we will have the 'checksum' key from the /export/event endpoint (MD5)
When this is merged: https://github.com/indico/indico/pull/5169 and Indico released, we will have the 'checksum' key from the /export/event endpoint (MD5)