windows latest (OpenAPITools#21682)

Author: devhl-labs

.github/workflows/samples-dotnet-fx.yaml

@@ -12,7 +12,7 @@ on:
 jobs:
   build:
     name: Build .Net projects
-    runs-on: windows-2019
+    runs-on: windows-latest
     strategy:
       fail-fast: false
       matrix: