Update dependency python to 3.14 (#1562)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/integration.yml

@@ -30,7 +30,7 @@ jobs:
           fetch-depth: 0
       - uses: actions/setup-python@v6
         with:
-          python-version: '3.9'
+          python-version: '3.14'
       - uses: ./.github/actions/setup-step-ca
       - uses: roots/setup-trellis-cli@v1
         with: