add release workflow

.github/workflows/release.yml

@@ -0,0 +1,30 @@
+name: Release to PyPi
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Set up Python
+      uses: actions/setup-python@v2
+      with:
+        python-version: '3.10'
+
+    - name: Install Poetry
+      run: |
+        curl -sSL https://install.python-poetry.org | python3 -
+
+    - name: Configure Poetry
+      run: |
+        poetry config virtualenvs.create false
+        poetry config pypi-token.pypi ${{ secrets.PYPI_API_TOKEN }}
+
+    - name: Build and publish
+      run: |
+        poetry build
+        poetry publish