Update Windows CI images as windows-2016 has been deprecated (#1784)

See actions/runner-images#5238

Author: bergmeister

.azure-pipelines-ci/ci.yaml

@@ -28,23 +28,23 @@ stages:
               vmImage: ubuntu-20.04
             mac_Latest:
               vmImage: macOS-latest
-            Windows_Server2016_PowerShell_Core:
-              vmImage: vs2017-win2016
             Windows_Server2019_PowerShell_Core:
               vmImage: windows-2019
+            Windows_Server2022_PowerShell_Core:
+              vmImage: windows-2022
         pool:
           vmImage: $[ variables['vmImage'] ]
         steps:
         - template: templates/test-pwsh.yaml
       - job:
         strategy:
           matrix:
-            Windows_Server2016_PowerShell_5_1:
-              vmImage: vs2017-win2016
-              pwsh: false
-            Windows_Server2019_PowerShell_5_1:
+            Windows_Server2019_PowerShell_Core:
               vmImage: windows-2019
               pwsh: false
+            Windows_Server2022_PowerShell_Core:
+              vmImage: windows-2022
+              pwsh: false
         pool:
           vmImage: $[ variables['vmImage'] ]
         steps: