Fix publish workflow (#134)

Author: clampr

.github/workflows/publish.yml

@@ -10,9 +10,9 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - name: Install Python 3
-        uses: actions/setup-python@v1
+        uses: actions/setup-python@v4
         with:
-          python-version: 3.6
+          python-version: 3.11
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip