Restore package action in CI/CD.

.github/workflows/ci_cd.yml

@@ -9,6 +9,42 @@ on:
 
 jobs:
 
+  package:
+    name: Package the project
+    runs-on: ubuntu-22.04
+
+    steps:
+
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.10"
+
+      - name: Install Python tools
+        run: pip install build twine
+
+      - name: Create distributions
+        run: python -m build -o dist/
+
+      - name: Inspect dist folder
+        run: ls -lah dist/
+
+      - name: Check wheel's abi and platform tags
+        run: test $(find dist/ -name *-none-any.whl | wc -l) -gt 0
+
+      - name: Run twine check
+        run: twine check dist/*
+
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v3
+        with:
+          path: dist/*
+          name: dist
+
   test:
     name: 'Python${{ matrix.python }}@${{ matrix.os }}'
     needs: package