chore(deps): update astral-sh/setup-uv action to v8

Author: renovate[bot]

.github/workflows/sync-requirements.yml

@@ -26,7 +26,7 @@ jobs:
           token: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Install uv
-        uses: astral-sh/setup-uv@v6
+        uses: astral-sh/setup-uv@v8.3.2
         with:
           version: "latest"