add pypi-publish action

.github/workflows/pypi-publish.yml

@@ -0,0 +1,24 @@
+name: Python package
+on:
+  push:
+    tags:
+      - "v*.*.*"
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-python@v3
+        name: Ensure Python Runtime
+        with:
+          python-version: '3.x'
+          architecture: 'x64'
+      - name: Ensure PDM & twine
+        run: |
+          python3 -m pip install pdm twine
+      - name: Build Package
+        run: |
+          pdm build
+      - name: Publish to PyPI
+        run: |
+          twine upload dist/* --non-interactive -u __token__ -p ${{ secrets.PYPI_TOKEN }}