[Mixed Reality - Remote Rendering]RemoteRendering functional tests will fail in the correct way on missing asset failing in nightly runs

[zzhxiaofeng]

Mixed Reality - Remote Rendering nightly test runs are failing with:

Error message:
expected false to be true

Stack trace:
AssertionError: expected false to be true
at Context. (/mnt/vss/_work/1/s/sdk/remoterendering/mixed-reality-remote-rendering/test/public/remoteRenderingClient.spec.ts:265:14)
at processTicksAndRejections (node:internal/process/task_queues:96:5)

+expected - actual

-false
+true

For more details check here:
https://dev.azure.com/azure-sdk/internal/_build/results?buildId=2856480&view=results