Update playwright.yml

explicit Python 3.13 version with cahed pip

Author: kjaymiller

.github/workflows/playwright.yml

@@ -20,7 +20,8 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: "3.12"
+          python-version: "3.13"
+          cache: 'pip'
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip