ci: configure explicit Python version for smoke tests

Pass python-version to setup-uv action to ensure the correct
Python version is installed before running smoke tests. Enable
cache-python to speed up subsequent workflow runs.

Author: birdcar

.github/workflows/release.yml

@@ -41,6 +41,9 @@ jobs:
         uses: actions/checkout@v5
       - name: Install uv
         uses: astral-sh/setup-uv@v6
+        with:
+          python-version: ${{ matrix.python }}
+          cache-python: true
       - name: Download artifacts
         uses: actions/download-artifact@v4
         with: