ci: 优化文档部署工作流

- 添加工作流文件自身到触发路径
- 添加 bun 依赖缓存以加速构建

Signed-off-by: Caijinglong <[email protected]>

Author: CaiJingLong

.github/workflows/deploy-docs.yml

@@ -6,6 +6,7 @@ on:
       - main
     paths:
       - 'docs/website/**'
+      - '.github/workflows/deploy-docs.yml'
   workflow_dispatch:
 
 permissions:
@@ -30,6 +31,14 @@ jobs:
         with:
           bun-version: latest
 
+      - name: Cache bun dependencies
+        uses: actions/cache@v4
+        with:
+          path: ~/.bun/install/cache
+          key: ${{ runner.os }}-bun-${{ hashFiles('docs/website/bun.lockb') }}
+          restore-keys: |
+            ${{ runner.os }}-bun-
+
       - name: Install dependencies
         run: bun install --frozen-lockfile