[MT][browser] `TestCancelAsync` failure

[ilonatommy]

Failing after enabling all MT library tests (#91536). log

[FAIL] System.ComponentModel.EventBasedAsync.Tests.BackgroundWorkerTests.TestCancelAsync
info: Assert.True() Failure
info: Expected: True
info: Actual:   False
info:    at System.ComponentModel.EventBasedAsync.Tests.BackgroundWorkerTests.TestCancelAsync()
info:    at System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(Object obj, IntPtr* args)
info:    at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)

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Issue Details

---

Failing after enabling all MT library tests (#91536). log

[FAIL] System.ComponentModel.EventBasedAsync.Tests.BackgroundWorkerTests.TestCancelAsync
info: Assert.True() Failure
info: Expected: True
info: Actual:   False
info:    at System.ComponentModel.EventBasedAsync.Tests.BackgroundWorkerTests.TestCancelAsync()
info:    at System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(Object obj, IntPtr* args)
info:    at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)

Author:	ilonatommy
Assignees:	-
Labels:	arch-wasm, disabled-test, area-VM-threading-mono
Milestone:	-

[pavelsavara]

Does this still happen after #94180 ?