chore: update GitHub Actions workflow to use setup-uv action to install python

Author: timonrieger

.github/workflows/test.yml

@@ -572,11 +572,8 @@ jobs:
           token: ${{ steps.token.outputs.token }}
       - name: Install uv
         uses: astral-sh/setup-uv@681c641aba71e4a1c380be3ab5e12ad51f415867 # v7.1.6
-      - uses: actions/setup-python@83679a892e2d95755f2dac6acb0bfd1e9ac5d548 # v6.1.0
-        # TODO: add caching when supported (https://github.com/actions/setup-python/pull/818)
         with:
           python-version: 3.11
-          #cache: 'uv'
       - name: Install dependencies
         run: |
           uv sync --extra cpu