Test setting action version via global.json

Author: bording

.github/workflows/ci.yml

@@ -38,7 +38,7 @@ jobs:
       - name: Setup .NET SDK
         uses: actions/[email protected]
         with:
-          dotnet-version: 8.0.x
+          global-json-file: global.json
       - name: Download RavenDB Server
         shell: pwsh
         run: ./tools/download-ravendb-server.ps1