Only Include SDK Test Results (Azure#32490)

Author: alzimmermsft

eng/pipelines/templates/steps/build-and-test.yml

@@ -139,6 +139,9 @@ steps:
   - task: PublishTestResults@2
     condition: always()
     inputs:
+      testResultsFormat: 'JUnit'
+      testResultsFiles: '**/TEST-*.xml'
+      searchFolder: '$(System.DefaultWorkingDirectory)/sdk'
       mergeTestResults: true
       testRunTitle: $(Agent.JobName)
       ${{ if ne(parameters.TestResultsFiles, '') }}: