Update actions/setup-python action

Author: netmindz

.github/workflows/wled-ci.yml

@@ -16,7 +16,7 @@ jobs:
         key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
         restore-keys: |
           ${{ runner.os }}-pip-
-    - uses: actions/setup-python@v4
+    - uses: actions/setup-python@v5
       with:
         python-version: '3.9'
     - name: Install PlatformIO