Bump "setup-bun" action in CI workflow

Author: Destiner

.github/workflows/ci.yaml

@@ -19,7 +19,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Setup Bun
-        uses: oven-sh/setup-bun@v1
+        uses: oven-sh/setup-bun@v2
 
       - name: Clean install
         run: bun install