Fix bikeshed by bumping python version

Author: johannhof

.github/workflows/auto-publish.yml

@@ -11,7 +11,10 @@ jobs:
       contents: write
     steps:
       - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: 3.12
       - uses: w3c/spec-prod@v2
         with:
           GH_PAGES_BRANCH: gh-pages
-          BUILD_FAIL_ON: warning
+          BUILD_FAIL_ON: warning