add release CI

Author: konsumer

.github/workflows/carts.yml

@@ -42,3 +42,18 @@ jobs:
         with:
           name: ${{ matrix.cart }}_js
           path: ${{ matrix.cart }}_js.null0
+
+  release:
+    name: Create Release
+    runs-on: ubuntu-latest
+    if: github.ref_type == 'tag'
+    needs: [c, js]
+    steps:
+      - name: Download all artifacts
+        uses: actions/download-artifact@v4
+        with:
+          path: artifacts
+      - name: Create Release and Upload Assets
+        uses: softprops/action-gh-release@v2
+        with:
+          files: artifacts/**/*.null0