chore: S3_BUCKET_NAME secret에서 불러오도록 변경

Author: bebusl

.github/workflows/deploy.yml

@@ -36,4 +36,4 @@ jobs:
       # S3 Sync
       - name: Upload to S3
         run: |
-          aws s3 sync ./dist s3://${{ env.S3_BUCKET_NAME }} --delete
+          aws s3 sync ./dist s3://${{ secrets.S3_BUCKET_NAME }} --delete