Add test workflow

.github/workflows/test.yml

@@ -0,0 +1,23 @@
+name: .NET
+
+on:
+  push:
+    branches: ["main"]
+  pull_request:
+    branches: ["main"]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+    - name: Setup .NET
+      uses: actions/setup-dotnet@v4
+      with:
+        dotnet-version: 8.0.x
+    - name: Build
+      run: dotnet build
+    - name: Test
+      run: dotnet test --no-build --verbosity normal