runtime: InstanceDataCollection_* failures in CI

https://mc.dot.net/#/user/danmosemsft/pr~2Fjenkins~2Fdotnet~2Fcorefx~2Fmaster~2F/test~2Ffunctional~2Fcli~2F/01337d9cc1d615c0367d1625028ac2cc95cdb34f/workItem/System.Diagnostics.PerformanceCounter.Tests/analysis/xunit/System.Diagnostics.Tests.InstanceDataTests~2FInstanceDataCollectionCollection_Contains_Valid Windows.10.Amd64.Open-Release-x86

all failed the same way on this particular machine/config: InstanceDataCollection_GetItem_ExistingCounter InstanceDataCollection_GetKeys InstanceDataCollection_GetValues InstanceDataCollection_NullTest InstanceDataCollectionCollection_Contains_inValid InstanceDataCollectionCollection_Contains_Valid InstanceDataCollectionCollection_CopyTo InstanceDataCollectionCollection_GetItem_Invalid InstanceDataCollectionCollection_GetKeys InstanceDataCollectionCollection_GetValues

Unhandled Exception of Type Xunit.Sdk.NotEqualException
Message :
Assert.NotEqual() Failure
Expected: Not 0
Actual:   0
Stack Trace :
   at System.Diagnostics.Tests.Helpers.RetryOnAllPlatforms[T](Func`1 func) in D:\j\workspace\windows-TGrou---f8ac6754\src\System.Diagnostics.PerformanceCounter\tests\Helpers.cs:line 74
   at System.Diagnostics.Tests.InstanceDataTests.GetInstanceDataCollectionCollection() in D:\j\workspace\windows-TGrou---f8ac6754\src\System.Diagnostics.PerformanceCounter\tests\InstanceDataTests.cs:line 130
   at System.Diagnostics.Tests.InstanceDataTests.InstanceDataCollectionCollection_Contains_Valid() in D:\j\workspace\windows-TGrou---f8ac6754\src\System.Diagnostics.PerformanceCounter\tests\InstanceDataTests.cs:line 104

@brianrob