chore: Uncomment pnpm/action-setup@v3 in docs.yml workflow

Author: HuakunShen

.github/workflows/docs.yml

@@ -35,7 +35,7 @@ jobs:
         uses: actions/checkout@v4
         with:
           fetch-depth: 0 # Not needed if lastUpdated is not enabled
-      # - uses: pnpm/action-setup@v3 # Uncomment this if you're using pnpm
+      - uses: pnpm/action-setup@v3 # Uncomment this if you're using pnpm
       # - uses: oven-sh/setup-bun@v1 # Uncomment this if you're using Bun
       - name: Setup Node
         uses: actions/setup-node@v4