Change build image to 1es.windows-2019

azure-pipelines.yml

@@ -46,7 +46,7 @@ stages:
             vmImage: 'windows-latest'
           ${{ if and(ne(variables['System.TeamProject'], 'public'), notin(variables['Build.Reason'], 'PullRequest')) }}:
             name: NetCore1ESPool-Internal
-            demands: ImageOverride -equals Build.Windows.10.Amd64.VS2019
+            demands: ImageOverride -equals 1es.windows-2019
         variables:
         # Only enable publishing in official builds
         - ${{ if and(ne(variables['System.TeamProject'], 'public'), notin(variables['Build.Reason'], 'PullRequest')) }}: