Test GlobalOptionsTest.ValidateAllOptions is flaky

[dibarbet]

https://dev.azure.com/dnceng-public/public/_build/results?buildId=1119836&view=ms.vss-test-web.build-test-results-tab&runId=30763566&resultId=101373&paneView=debug

System.AggregateException : One or more errors occurred.
---- System.Exception : Assertion failed
---- System.Exception : Assertion failed
---- System.Exception : Assertion failed
---- System.Exception : Assertion failed

at Microsoft.CodeAnalysis.ErrorReporting.TestTraceListener.VerifyNoErrorsAndReset() in /_/src/VisualStudio/IntegrationTest/TestSetup/TestTraceListener.cs:line 135
   at Roslyn.VisualStudio.IntegrationTests.AbstractIntegrationTest.<DisposeAsync>d__8.MoveNext() in /_/src/VisualStudio/IntegrationTest/New.IntegrationTests/AbstractIntegrationTest.cs:line 188
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.GetResult()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
----- Inner Stack Trace #1 (System.Exception) -----
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Microsoft.CodeAnalysis.ErrorReporting.TestTraceListener.Exit(String message) in /_/src/VisualStudio/IntegrationTest/TestSetup/TestTraceListener.cs:line 105
----- Inner Stack Trace #2 (System.Exception) -----
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Microsoft.CodeAnalysis.ErrorReporting.TestTraceListener.Exit(String message) in /_/src/VisualStudio/IntegrationTest/TestSetup/TestTraceListener.cs:line 105
----- Inner Stack Trace #3 (System.Exception) -----
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Microsoft.CodeAnalysis.ErrorReporting.TestTraceListener.Exit(String message) in /_/src/VisualStudio/IntegrationTest/TestSetup/TestTraceListener.cs:line 105
----- Inner Stack Trace #4 (System.Exception) -----
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Microsoft.CodeAnalysis.ErrorReporting.TestTraceListener.Exit(String message) in /_/src/VisualStudio/IntegrationTest/TestSetup/TestTraceListener.cs:line 105

[dibarbet]

skipping in #79789