add pypi release action [skip ci]

.github/workflows/release-pypi.yml

@@ -0,0 +1,33 @@
+name: Release to PyPI
+on: [release]
+
+jobs:
+  ci:
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: [3.6]
+        os: [ubuntu-20.04]
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - name: Git Checkout
+        uses: actions/checkout@v2
+
+      - name: Install Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install Poetry
+        uses: abatilo/actions-poetry@v2.0.0
+        with:
+          poetry-version: ${{ matrix.poetry-version }}
+
+      - name: Build hyperglass
+        run: |
+          poetry config pypi-token.pypi ${{ secrets.PYPI_API_TOKEN }}
+          poetry build -f sdist
+
+      - name: Publish hyperglass release
+        run: poetry publish