Add matrix build and upload artifacts

.gitea/workflows/ci.yml

@@ -13,4 +13,9 @@ jobs:
         with:
           dotnet-version: '8.0.x'
       - run: dotnet restore
-      - run: dotnet publish -o app -r ${{ matrix.rid }} --sc /p:PublishSingleFile=true
+      - run: dotnet publish -o app-${{ matrix.rid }} -r ${{ matrix.rid }} --sc /p:PublishSingleFile=true
+      - run: tar cf app-${{ matrix.rid }}.tar app-${{ matrix.rid }}
+      - uses: actions/upload-artifact@v3
+        with:
+          name: app-${{ matrix.rid }}.tar
+          path: app-${{ matrix.rid }}.tar