Remove Python cache

Author: petebachant

.github/workflows/run.yml

@@ -18,7 +18,6 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: "3.13"
-          cache: pip
       - run: pip install calkit-python uv
       - name: Restore DVC cache
         id: cache-dvc-restore