Update Python version to 3.13 in workflow

Author: aeisenberg

.github/workflows/update-supported-enterprise-server-versions.yml

@@ -19,7 +19,7 @@ jobs:
       - name: Setup Python
         uses: actions/setup-python@v5
         with:
-          python-version: "3.7"
+          python-version: "3.13"
       - name: Checkout CodeQL Action
         uses: actions/checkout@v4
       - name: Checkout Enterprise Releases