ci: build before publish (#12)

* ci: build before publish

* ci: fix python version

Author: gao-sun

.github/workflows/publish.yml

@@ -19,7 +19,10 @@ jobs:
 
       - uses: astral-sh/setup-uv@v6
         with:
-          python-version: 3.10
+          python-version: '3.10'
+
+      - name: Build
+        run: uv build
 
       - name: Publish to PyPI
         run: uv publish