refactor ci.yml to use multiline format for dotnet versions

Author: BenjaminAbt

.github/workflows/ci.yml

@@ -15,6 +15,10 @@ jobs:
     uses: mycsharp/github-actions/.github/workflows/dotnet-nuget-build-multi-sdk.yml@main
     with:
       configuration: Release
-      dotnet_sdks: "['8.x', '9.x', '10.x']"
+      dotnet-versions: |
+        8.x
+        9.x
+        10.x
+
     secrets:
       NUGET_API_KEY: ${{ secrets.NUGET_API_KEY }}