Add vstest exclusion with issue to investigate

src/SourceBuild/content/test/Microsoft.DotNet.SourceBuild.Tests/assets/SdkContentTests/MsftToSbSdkFiles.diff

@@ -60,15 +60,6 @@ index ------------
  ./sdk-manifests/x.y.z/microsoft.net.sdk.aspire/
  ./sdk-manifests/x.y.z/microsoft.net.sdk.aspire/x.y.z/
  ./sdk-manifests/x.y.z/microsoft.net.sdk.aspire/x.y.z/WorkloadManifest.Aspire.targets
-@@ ------------ @@
- ./sdk/x.y.z/es/vstest.console.resources.dll
- ./sdk/x.y.z/Extensions/
- ./sdk/x.y.z/Extensions/Microsoft.Diagnostics.NETCore.Client.dll
--./sdk/x.y.z/Extensions/Microsoft.TestPlatform.Extensions.BlameDataCollector.dll
--./sdk/x.y.z/Extensions/Microsoft.TestPlatform.Extensions.EventLogCollector.dll
- ./sdk/x.y.z/Extensions/Microsoft.TestPlatform.TestHostRuntimeProvider.dll
- ./sdk/x.y.z/Extensions/Microsoft.VisualStudio.TestPlatform.Extensions.Html.TestLogger.dll
- ./sdk/x.y.z/Extensions/Microsoft.VisualStudio.TestPlatform.Extensions.Trx.TestLogger.dll
 @@ ------------ @@
  ./sdk/x.y.z/Microsoft.Build.NuGetSdkResolver.dll
  ./sdk/x.y.z/Microsoft.Build.Tasks.Core.dll

src/SourceBuild/content/test/Microsoft.DotNet.SourceBuild.Tests/assets/SdkContentTests/SdkFileDiffExclusions.txt

@@ -83,6 +83,10 @@
 ./sdk/x.y.z/*/Microsoft.VisualStudio.TestPlatform.Extensions.Html.TestLogger.resources.dll|sb
 ./sdk/x.y.z/*/Microsoft.VisualStudio.TestPlatform.Extensions.Trx.TestLogger.resources.dll|sb
 
+# https://github.com/dotnet/source-build/issues/4881
+./sdk/x.y.z/Extensions/Microsoft.TestPlatform.Extensions.BlameDataCollector.dll|msft
+./sdk/x.y.z/Extensions/Microsoft.TestPlatform.Extensions.EventLogCollector.dll|msft
+
 # Needed for source-built NativeAOT with the source-built SDK
 ./library-packs/|sb
 ./packs/runtime.banana-rid.Microsoft.DotNet.ILCompiler/|sb