fix: remove setup-node, use bun for publish job

Author: ivan2214

.github/workflows/release.yml

@@ -5,9 +5,9 @@ on:
     branches:
       - main
     paths:
-      - 'packages/plugin/**'
-      - '.changeset/**'
-      - '.github/workflows/release.yml'
+      - "packages/plugin/**"
+      - ".changeset/**"
+      - ".github/workflows/release.yml"
 
 permissions:
   contents: write
@@ -55,16 +55,16 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
-      - name: Setup Node.js
-        uses: actions/setup-node@v4
+      - name: Setup Bun
+        uses: oven-sh/setup-bun@v2
         with:
-          node-version: '20'
+          bun-version: latest
 
       - name: Install dependencies
-        run: npm ci
+        run: bun install --frozen-lockfile
 
       - name: Build plugin
-        run: npm turbo run build --filter=better-auth-mercadopago
+        run: bun turbo run build --filter=better-auth-mercadopago
 
       - name: Publish to npm
         run: |