Once every swh modules have been deployed, we should cleanup the tasks submodule's collaborator (lister/loader/indexer)'s no longer useful configuration.
Once again, one step closer to T1410, T826.
Also cleanup the remaining dangling debian/ tree arborescence in every module's master branch (debian packaging in swh modules starts in debian/unstable-swh branch now).
Most if not all of the debian packaging should have been fixed once T1525 is done (remains the vault one for upstream test failure to fix).
Then package and redeploy.