Update windows ci image names (#1469)

* Update windows ci image names

The currently used ones have been replaced and any PR should fail without this change.

* Use vs2022 images

Even better than the 2019 since these ones can target .NET 7.0

azure-pipelines.yml

@@ -51,10 +51,10 @@ stages:
         pool:
           ${{ if eq(variables['System.TeamProject'], 'public') }}:
             name: NetCore-Public
-            demands: ImageOverride -equals Build.Server.Amd64.VS2019.Open
+            demands: ImageOverride -equals windows.vs2022.amd64.open
           ${{ if ne(variables['System.TeamProject'], 'public') }}:
             name: NetCore1ESPool-Internal
-            demands: ImageOverride -equals Build.Server.Amd64.VS2019
+            demands: ImageOverride -equals windows.vs2022.amd64
         variables: