Quarantine `ThreadingAppTest.CounterPageCanUseThreads`

[MackinnonBuck]

Failing Test(s)

• Microsoft.AspNetCore.Components.E2ETest.Tests.ThreadingAppTest.CounterPageCanUseThreads

Error Message

OpenQA.Selenium.BrowserAssertFailedException : Xunit.Sdk.NotEqualException: Assert.NotEqual() Failure: Strings are equal
Expected: Not "Current count: 0"
Actual:       "Current count: 0"

Stacktrace

   at Microsoft.AspNetCore.E2ETesting.WaitAssert.WaitAssertCore[TResult](IWebDriver driver, Func`1 assertion, TimeSpan timeout) in /home/vsts/work/1/s/src/Shared/E2ETesting/WaitAssert.cs:line 129
   at Microsoft.AspNetCore.E2ETesting.WaitAssert.WaitAssertCore(IWebDriver driver, Action assertion, TimeSpan timeout) in /home/vsts/work/1/s/src/Shared/E2ETesting/WaitAssert.cs:line 83
   at Microsoft.AspNetCore.E2ETesting.WaitAssert.NotEqual[T](IWebDriver driver, T expected, Func`1 actual) in /home/vsts/work/1/s/src/Shared/E2ETesting/WaitAssert.cs:line 30
   at Microsoft.AspNetCore.Components.E2ETest.Tests.ThreadingAppTest.CounterPageCanUseThreads() in /home/vsts/work/1/s/src/Components/test/E2ETest/Tests/ThreadingAppTest.cs:line 83
   at InvokeStub_ThreadingAppTest.CounterPageCanUseThreads(Object, Object, IntPtr*)
   at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)
----- Inner Stack Trace -----
   at Microsoft.AspNetCore.E2ETesting.WaitAssert.<>c__DisplayClass17_0.<WaitAssertCore>b__0() in /home/vsts/work/1/s/src/Shared/E2ETesting/WaitAssert.cs:line 83
   at Microsoft.AspNetCore.E2ETesting.WaitAssert.<>c__DisplayClass18_0`1.<WaitAssertCore>b__0(IWebDriver _) in /home/vsts/work/1/s/src/Shared/E2ETesting/WaitAssert.cs:line 101

Build

• https://dev.azure.com/dnceng-public/public/_build/results?buildId=826849&view=ms.vss-test-web.build-test-results-tab&runId=21498884&resultId=100188