add release action

Author: jschlyter

.github/workflows/release.yml

@@ -0,0 +1,19 @@
+name: Publish to PyPI
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  pypi_release:
+    name: Build with Poetry and Publish to PyPI
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-python@v2
+      - name: Install and configure Poetry
+        run: |
+          pip install poetry
+          poetry config pypi-token.pypi "${{ secrets.PYPI_TOKEN }}"
+      - name: Publish package
+        run: poetry publish --build