"Helix API does not contain an entry for $(helix_macos_arm64)" failures in some pipelines #122061
Description
E.g. runtime-coreclr jitstressregs: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1215339&view=results
2025-11-29T11:50:13.5561510Z Sending Job to $(helix_macos_arm64)...
2025-11-29T11:50:14.4303760Z ##[error].packages/microsoft.dotnet.helix.sdk/11.0.0-beta.25528.108/tools/Microsoft.DotNet.Helix.Sdk.MonoQueue.targets(47,5): error : (NETCORE_ENGINEERING_TELEMETRY=Build) Helix API does not contain an entry for $(helix_macos_arm64)
cc @agocke, introduced by #121373?
Also seen in runtime-coreclr jitstress2-jitstressregs, runtime-coreclr jitstress-isas-x86, jitstress-isas-arm, runtime-coreclr ilasm, runtime-coreclr jitstress-random, runtime-coreclr pgo, runtime-coreclr pgostress