add workflow to automate PyPI package release

Author: purificant

.github/workflows/release_pypi.yaml

@@ -0,0 +1,22 @@
+name: release pypi
+# when manually triggered
+on: workflow_dispatch
+
+jobs:
+  release_pypi:
+    name: PyPI release
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Setup python
+        uses: actions/setup-python@v2
+        with:
+          python-version: 3.9
+
+      - name: Install poetry
+        run: make get-poetry
+
+      - name: Build and publish package
+        run: poetry publish --build --username ${{ secrets.PYPI_USERNAME }} --password ${{ secrets.PYPI_PASSWORD }}

.github/workflows/test.yaml

@@ -48,7 +48,7 @@ jobs:
 
   coveralls:
     name: Indicate completion to coveralls.io when all parallel jobs finished
-    needs: build
+    needs: test
     runs-on: ubuntu-latest
     container: python:3-slim
     steps: