Upgrade actions/setup-dotnet@v5

Author: orjan

.github/workflows/build-and-test.yaml

@@ -17,7 +17,7 @@ jobs:
     steps:
       - uses: actions/checkout@v5
       - name: Setup DotNet
-        uses: actions/setup-dotnet@v2
+        uses: actions/setup-dotnet@v5
         with:
           dotnet-version: |
             8.x