Update tests gh workflow

.github/workflows/tests.yml

@@ -18,17 +18,13 @@ jobs:
           - {name: Python 3.10, python: '3.10'}
           - {name: Python 3.11, python: '3.11'}
           - {name: Python 3.12, python: '3.12'}
-          - {name: Python 3.13, python: '3.13-dev'}
+          - {name: Python 3.13, python: '3.13'}
     steps:
       - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python }}
         uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python }}
-      - name: Install libxml2
-        if: startsWith(matrix.python, '3.13')
-        run: |
-          sudo apt-get install libxml2-dev libxslt-dev
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip setuptools