chore(deps): update actions/setup-python action to v6 (#52)

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

Author: renovate[bot]

.github/workflows/publish.yaml

@@ -21,7 +21,7 @@ jobs:
           fetch-depth: 0
       - name: Setup Pages
         uses: actions/configure-pages@v5
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v6
         with:
           python-version: 3.x
           cache: pip