chore: update Python version in GitHub Actions workflow from 3.12 to 3.13

Author: ryan-gang

.github/workflows/test.yml

@@ -8,12 +8,15 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
+
       - name: Set up Go
         uses: actions/setup-go@v5
         with:
           go-version: 1.24.x
+
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
-          python-version: '3.12'
+          python-version: '3.13'
+
       - run: make test