Bump actions/setup-dotnet from 3 to 4 (#3)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -38,7 +38,7 @@ jobs:
           restore-keys: ${{ runner.os }}-nuget-
 
       - name: Setup DotNet 8
-        uses: actions/setup-dotnet@v3
+        uses: actions/setup-dotnet@v4
         with:
           dotnet-version: 8.0.x
           dotnet-quality: 'preview'