also add to template

Author: sentrivana

scripts/split_tox_gh_actions/templates/test_group.jinja

@@ -42,7 +42,7 @@
     # Use Docker container only for Python 3.6
     {% raw %}container: ${{ matrix.python-version == '3.6' && 'python:3.6' || null }}{% endraw %}
     steps:
-      - uses: actions/checkout@v6.0.0
+      - uses: actions/checkout@v6.0.1
       - uses: actions/setup-python@v6
         {% raw %}if: ${{ matrix.python-version != '3.6' }}{% endraw %}
         with: