Merge pull request #12802 from learningequality/rtibbles-patch-2

Use explicit Python version to suppress warning

.github/workflows/pypi_upload.yml

@@ -30,6 +30,8 @@ jobs:
     - uses: actions/checkout@v4
     - name: Set up Python
       uses: actions/setup-python@v5
+      with:
+        python-version: '3.x'
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip