Merge pull request #23 from youseetoo/beniroquai-patch-3

Update build_platformio.yaml

.github/workflows/build_platformio.yaml

@@ -22,7 +22,9 @@ jobs:
         ref: main
         submodules: recursive
     - name: Set up Python
-      uses: actions/setup-python@v1
+      uses: actions/setup-python@v5
+      with:
+        python-version: '3.9'
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip