Update Python version format in GitHub workflow

Author: scaomath

.github/workflows/python-publish.yml

@@ -23,7 +23,7 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@v2
       with:
-        python-version: 3.10
+        python-version: "3.10"
 
     - name: Install pip
       run: python -m pip install --upgrade pip