ci: automatically publish package on pypi

.github/workflows/publish.yml

@@ -0,0 +1,26 @@
+name: Publish package
+on:
+  release:
+    types: [created]
+jobs:
+  pypi:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout the source code
+      uses: actions/checkout@v3
+
+    - name: Setup Python
+      uses: actions/setup-python@v4
+      with:
+        python-version: '3.x'
+
+    - name: Install dependencies
+      run: pip3 install --upgrade build
+
+    - name: Build Python package
+      run: python3 -m build --sdist --wheel --outdir dist/ .
+
+    - name: Publish package to PyPI
+      uses: pypa/gh-action-pypi-publish@release/v1
+      with:
+        password: ${{ secrets.PYPI_API_TOKEN }}