migrate_extrinsic_metadata: Allow 'atom:title' as alternative to 'title'
Some revisions use it instead.
Resolves https://forge.softwareheritage.org/T2513#62434
Migrated from D5440 (view on Phabricator)
Staging instance, all changes can be removed at any time
Some revisions use it instead.
Resolves https://forge.softwareheritage.org/T2513#62434
Migrated from D5440 (view on Phabricator)