chore: update actions/setup-python action to v6

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

Author: renovate[bot]

.github/workflows/continuous-integration.yml

@@ -37,7 +37,7 @@ jobs:
         with:
           node-version: ${{ matrix.node-version }}
       - name: Set up Python 3.11 (for node-gyp)
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: '3.11'
       - name: Install dependencies