Add artifact-based .NET build and test

.gitea/workflows/ci.yml

@@ -7,17 +7,32 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+
       - uses: actions/setup-dotnet@v3
         with:
           dotnet-version: '8.0.x'
+
       - run: dotnet restore
       - run: dotnet build
+      - run: dotnet test
+
+      - run: dotnet publish -o app -r linux-x64 --self-contained true /p:PublishSingleFile=true /p:AssemblyName=app
+
+      - run: tar cf app.tar app/
+
+      - uses: actions/upload-artifact@v3
+        with:
+          name: app.tar
+          path: app.tar
 
   test:
     runs-on: ubuntu-latest
     steps:
-      - name: trying to run
+      - uses: actions/download-artifact@v3
-        run: dotnet run
+        with:
+          name: app.tar
 
+      - run: tar xf app.tar
 
+      - run: ./app/app