Use uv cache in docs.yml

Author: luolingchun

.github/workflows/docs.yml

@@ -12,6 +12,8 @@ jobs:
       - uses: actions/checkout@v6
 
       - uses: astral-sh/setup-uv@v7
+        with:
+          enable-cache: true
 
       - name: Install dependencies
         run: uv sync