Fix GH PyPi action try 1

Signed-off-by: Alexis Jeandet <[email protected]>

.github/workflows/pythonpublish.yml

@@ -7,19 +7,23 @@ on:
 jobs:
   deploy:
     runs-on: ubuntu-latest
+    strategy:
+        max-parallel: 4
+        matrix:
+            python-version: [3.6, 3.7, 3.8]
     steps:
     - uses: actions/checkout@v1
-    - name: Set up Python
+    - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v1
       with:
-        python-version: '3.x'
+        python-version: ${{ matrix.python-version }}
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
         pip install setuptools wheel twine
     - name: Build and publish
       env:
-        TWINE_USERNAME: ${{ secrets.PYPI_USERNAME }}
+        TWINE_USERNAME: __token__
         TWINE_PASSWORD: ${{ secrets.PYPI_PASSWORD }}
       run: |
         python setup.py sdist bdist_wheel