Communication - Identity nightly test runs are failing with:

Error message:
Internal server error.

Stack trace:
RestError: Internal server error.
at handleErrorResponse (/mnt/vss/_work/1/s/sdk/core/core-http/src/policies/deserializationPolicy.ts:274:17)
at /mnt/vss/_work/1/s/sdk/core/core-http/src/policies/deserializationPolicy.ts:179:47
at processTicksAndRejections (internal/process/task_queues.js:97:5)
at IdentityRestClient.sendOperationRequest (/mnt/vss/_work/1/s/sdk/core/core-http/src/serviceClient.ts:521:23)
at CommunicationIdentityClient.revokeTokens (/mnt/vss/_work/1/s/sdk/communication/communication-identity/src/communicationIdentityClient.ts:155:7)
at Context. (/mnt/vss/_work/1/s/sdk/communication/communication-identity/test/public/communicationIdentityClient.spec.ts:71:7)

For more details check here:

• https://dev.azure.com/azure-sdk/internal/_build/results?buildId=1266362&view=results
• https://dev.azure.com/azure-sdk/internal/_build/results?buildId=1268913&view=results