Publish test results to Azure Pipeline (#10380)

Author: dingmeng-xue

.azure-pipelines/util/test-steps.yml

@@ -16,6 +16,11 @@ steps:
     custom: msbuild
     arguments: 'build.proj /t:${{ parameters.testTarget }} /p:Configuration=${{ parameters.configuration }};TestFramework=${{ parameters.testFramework }};PullRequestNumber=$(System.PullRequest.PullRequestNumber)'
 
+- task: PublishTestResults@2
+  inputs:
+    testRunner: VSTest
+    testResultsFiles: '**/*.trx'
+
 - template: publish-artifacts-steps.yml
   parameters:
     artifactName: test-${{ parameters.osName }}