debian: Add missing file URIs in lister output
For a given package, the debian lister generates a dictionary mapping distribution and version to a list of files to be processed by the debian loader.
For each file to process, the debian loader expects to find an URI in order to download it and then use its content to ingest package source code into the archive.
However, it turns out these URIs were not computed by the lister in its current implementation making any debian loading task fail due to these missing info.
So add the computation of these URIS and ensure they will be provided in the debian loader input parameters.
Related to swh/infra/sysadm-environment#2400 (closed)
Migrated from D6735 (view on Phabricator)