[Windows]update ci 1

Author: xgfd3

windows/cicd/templates/build-Windows.yml

@@ -17,7 +17,7 @@ jobs:
     displayName: ${{ parameters.displayName }}
 
     pool:
-      vmImage: 'vs2017-win2016'
+      vmImage: 'windows-2019'
 
     variables:
       - group: AgoraKeys