fix(PyPi): build project before publishing

Author: gary1998

.github/workflows/main.yaml

@@ -91,6 +91,14 @@ jobs:
       - name: setup extensions
         uses: actions/checkout@v1
 
+      - name: install build module
+        run: |
+          python -m pip install --upgrade pip
+          pip install build
+      
+      - name: build project
+        run: python -m build
+
       - name: publish to pypi
         uses: pypa/gh-action-pypi-publish@release/v1
         with: