staging: Migrate last indexer journal client to elastic workers
staging: Migrate last indexer journal client to elastic workers

Related to T4540

SoftwareHeritage/puppet-swh-site,SoftwareHeritage/puppet-swh-site,SoftwareHeritage/puppet-swh-site,SoftwareHeritage/puppet-swh-site,SoftwareHeritage/puppet-swh-site