ci: pin bun version to fix setup-bun action

Co-Authored-By: Claude (droid-opus) <noreply@anthropic.com>

Author: MagicFun1241

.github/workflows/publish.yml

@@ -20,7 +20,7 @@ jobs:
       - name: Setup Bun
         uses: oven-sh/setup-bun@v2
         with:
-          bun-version: latest
+          bun-version: 1.3.8
 
       - name: Prepare
         run: |