add publish task to check if package builds properly

.github/workflows/tests.yml

@@ -47,3 +47,33 @@ jobs:
       #  uses: codecov/[email protected]
       #  with:
       #    token: ${{ secrets.CODECOV_TOKEN }}
+
+  publish:
+    runs-on: ubuntu-latest
+
+    # Steps for running tests and analysis.
+    steps:
+      - name: Checking out repository
+        uses: actions/checkout@v4
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          submodules: recursive
+
+      - name: Install a specific version of uv
+        uses: astral-sh/setup-uv@v3
+        with:
+          version: "0.4.x"
+          enable-cache: true
+
+      - name: Install Python 3.12
+        run: uv python install 3.12
+
+      - name: Build package
+        run: uv build
+
+      - name: Check package can be imported
+        run: uv run --with dist/dtspy-*-py3-none-any.whl --no-project -- python -c "import dts"
+
+      # when ready to upload to PyPI
+      # name: upload to PyPI
+      # run: uv publish