Remove python setup from rebuild workflow

Author: mbg

.github/workflows/rebuild.yml

@@ -73,11 +73,6 @@ jobs:
           npm run lint -- --fix
           npm run build
 
-      - name: Set up Python
-        uses: actions/setup-python@v6
-        with:
-          python-version: 3.11
-
       - name: Sync back version updates to generated workflows
         # Only sync back versions on Dependabot update PRs
         if: startsWith(env.HEAD_REF, 'dependabot/')