atualiza a ação de configuração do Bun para a versão 2 no workflow de documentação

Author: hermesalvesbr

.github/workflows/docs.yml

@@ -18,15 +18,14 @@ jobs:
           fetch-depth: 0
 
       - name: Setup Bun
-        uses: oven-sh/setup-bun@v1
+        uses: oven-sh/setup-bun@v2
         with:
           bun-version: latest
 
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
           node-version: 22
-          cache: bun
 
       - name: Install deps
         run: bun install