[ci][test]Disable tests that depend on WebView2 (#19078)

* [ci][test]Disable tests that depend on WebView2

* Add actual dll name for markdown tests

* Random commit to trigger CI again

.pipelines/ci/templates/build-powertoys-steps.yml

@@ -141,16 +141,12 @@ steps:
     testSelector: 'testAssemblies'
     testAssemblyVer2: |
       **\UnitTests-GcodeThumbnailProvider.dll
-      **\UnitTests-SvgThumbnailProvider.dll
       **\UnitTests-StlThumbnailProvider.dll
       **\UnitTests-PdfThumbnailProvider.dll
       **\Settings.UI.UnitTests.dll
-      **\UnitTests-MarkdownPreviewHandler.dll
       **\UnitTests-GcodePreviewHandler.dll
       **\UnitTests-PdfPreviewHandler.dll
-      **\UnitTests-SvgPreviewHandler.dll
       **\UnitTests-PreviewHandlerCommon.dll
-      **\PreviewPaneUnitTests.dll
       **\Microsoft.PowerToys.Run.Plugin.Registry.UnitTests.dll
       **\UnitTest-ColorPickerUI.dll
       **\Microsoft.Interop.Tests.dll
@@ -168,6 +164,11 @@ steps:
       !**\obj\**
       !**\ref\**
 
+# TODO: Enable these tests after figuring out what caused the tests that depend on WebView2 to start timing out in CI.
+#  **\PreviewPaneUnitTests.dll # It's UnitTests-MarkdownPreviewHandler
+#  **\UnitTests-SvgThumbnailProvider.dll
+#  **\UnitTests-SvgPreviewHandler.dll
+
 # Native dlls
 - task: VSTest@2
   condition: ne(variables['BuildPlatform'],'arm64') # No arm64 agents to run the tests.