ci: upgrade setup-bun from v1 to v2

Author: Priveetee

.github/workflows/deploy.yml

@@ -23,7 +23,7 @@ jobs:
           fetch-depth: 0
 
       - name: Setup Bun
-        uses: oven-sh/setup-bun@v1
+        uses: oven-sh/setup-bun@v2
 
       - name: Install dependencies
         run: bun install