Update dependency python to 3.13 (#2704)

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

Author: renovate[bot]

.github/workflows/docker-test.yml

@@ -184,7 +184,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@main
         with:
-          python-version: '3.11'
+          python-version: '3.13'
           check-latest: true
       - name: Enable KVM
         if: matrix.test-strategy == 'test_node_relay' && contains(matrix.os, 'arm') == false

.github/workflows/nightly.yml

@@ -116,7 +116,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@main
         with:
-          python-version: '3.11'
+          python-version: '3.13'
           check-latest: true
       - name: Update tag in docs and files
         run: ./update_tag_in_docs_and_files.sh ${LATEST_TAG} ${NEXT_TAG}