Deploy swh.lister v2.7

It allows to:

• make the launchpad lister to list bzr origins
• fix the sourceforge cvs and bzr origins listing

So this needs:

• clean up the actual bzr and cvs origins from the scheduling db as the current ones are all 404.
• migrate the launchpad lister's state to be adapted to the newest schema

Plan in order for environment in staging then production:

• clean up data
• migrate lister launchpad state (to avoid losing what we did, not that big of a deal otherwise but still)
• upgrade python3-swh.lister to v2.7
• restart swh-worker@lister service

Environment status:

• staging
• production

For staging first:

• trigger back the sourceforge and launchpad listing

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Migrated from T3947 (view on Phabricator)