Update docs.yml

.github/workflows/docs.yml

@@ -18,6 +18,22 @@ jobs:
           fetch-depth: 0
           submodules: 'recursive'
 
+      - name: Update Docs
+        continue-on-error: true
+        run: |
+          git config --local user.email "action@github.com"
+          git config --local user.name "GitHub Action"
+          git pull
+          git submodule update --init
+          git submodule update --remote
+          git add .
+          if git diff --staged --quiet; then
+            echo "跳过更新：子模块没有变化"
+          else
+            git commit -m "自动更新子模块 [skip ci]"
+            git push
+          fi
+
       - name: Copy Docs
         shell: pwsh
         run: |