Support Python 3.10 and Drop Python 3.6

.github/workflows/github-release.yml

@@ -19,10 +19,10 @@ jobs:
       - run: npm install
       - run: npm run build:prd
 
-      - name: Set up Python 3.8
+      - name: Set up Python 3.9
         uses: actions/setup-python@v2
         with:
-          python-version: 3.8
+          python-version: 3.9
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip setuptools