Update oven-sh/setup-bun action to v1.2.0

Author: renovate[bot]

.github/workflows/ci.yml

@@ -28,7 +28,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Setup Bun
-        uses: oven-sh/setup-bun@v1.1.1
+        uses: oven-sh/setup-bun@v1.2.0
 
       - name: Setup Pages
         id: pages