Switch from npm to bun

Author: Laoujin

.github/workflows/ci.yml

@@ -17,16 +17,14 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - name: Setup Node.js
-        uses: actions/setup-node@v4
-        with:
-          node-version: 20
+      - name: Setup Bun
+        uses: oven-sh/setup-bun@v2
 
       - name: Install dependencies
-        run: npm install
+        run: bun install
 
       - name: Build
-        run: npm run build
+        run: bun run build
 
       - name: Test
-        run: npm test
+        run: bun run test