WorkflowTestRunner: suppress errors for ignored FPEs
The WorkflowTestRunner ignores failures for tests with known FPEs. However, it was still printing an ERROR message. Demote this message to WARNING.
Discussed with @tadej.
The WorkflowTestRunner ignores failures for tests with known FPEs. However, it was still printing an ERROR message. Demote this message to WARNING.
Discussed with @tadej.