add pypi release github actions workflow

More info: This workflow will upload a Python Package using Twine
when a release is created.

PiperOrigin-RevId: 359122794

.github/workflows/pypi_release.yml

@@ -0,0 +1,28 @@
+name: Upload Python Package
+
+on:
+  release:
+    types: [created]
+
+jobs:
+  deploy:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Python
+      uses: actions/setup-python@v2
+      with:
+        python-version: '3.x'
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install setuptools wheel twine
+    - name: Build and publish
+      env:
+        TWINE_USERNAME: __token__
+        TWINE_PASSWORD: ${{ secrets.PYPI_APIKEY }}
+      run: |
+        python setup.py sdist bdist_wheel
+        twine upload dist/*

VERSION

@@ -1 +1 @@
-2.0.1
+2.0.2