chore(deps): update astral-sh/setup-uv action to v6

Author: renovate[bot]

.github/workflows/python.yml

@@ -8,7 +8,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - name: Set up Python 3.12
-        uses: astral-sh/setup-uv@v5
+        uses: astral-sh/setup-uv@v6
         with:
           python-version: "3.12"
           enable-cache: true