chore(deps): update actions/setup-dotnet action to v4 (#32)

Author: renovate[bot]

.github/workflows/test.yml

@@ -16,7 +16,7 @@ jobs:
         fetch-depth: 0
 
     - name: Setup .NET
-      uses: actions/setup-dotnet@v3
+      uses: actions/setup-dotnet@v4
       with:
         dotnet-version: 6.0.x