Work around missing signal in Fuchsia
Work around missing signal in Fuchsia

Narrow the Fuchsia non-compliance rather than expecting the test to fail.

PiperOrigin-RevId: 460500478

google/gvisor,google/gvisor,google/gvisor,google/gvisor,google/gvisor,google/gvisor,google/gvisor,google/gvisor