Sync openquake.cfg.cluster-sample [skip ci]
Sync openquake.cfg.cluster-sample [skip ci]


Former-commit-id: b641bf7add098db6215de2bb8cac998f6e3c0216 [formerly 29b4d98c4020449428da7bf0e352498ffe07dcba]
Former-commit-id: a3c0e3977e4b25ffffb5a85d8a6a858eee68c5af
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine