Skipped the UCERF test on macOS [skip CI]
Skipped the UCERF test on macOS [skip CI]


Former-commit-id: d15d27bed289d4952711309abea99135c7e60aa1 [formerly be9cf22d9b84d0d12e832d5f862bd2a1c559d398]
Former-commit-id: 069396b844e7ee25d7f3ec9be4ad1056b7f1f34e
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine