fix: install uv in ci without setup action

.github/workflows/ci.yml

@@ -13,7 +13,9 @@ jobs:
         with:
           python-version: '3.12'
       - name: Install uv
-        uses: astral-sh/setup-uv@v4
+        run: curl -LsSf https://astral.sh/uv/install.sh | sh
+      - name: Add uv to PATH
+        run: echo "$HOME/.local/bin" >> "$GITHUB_PATH"
       - name: Sync dependencies
         run: uv sync --frozen
       - name: Run tests