Update sync_data.sh

sync_data.sh

@@ -60,6 +60,8 @@ with requests.get(f'$FULL_WEBDAV_URL/{latest_backup}', auth=('$WEBDAV_USERNAME',
                         os.makedirs('/data', exist_ok=True)
                         target_path = os.path.join('/data', 'cloudpaste.db')
                         os.replace(db_path, target_path)
+                        # 恢复后立刻确保可写
+                        os.chmod(target_path, 0o664)
                         print(f'成功从 {latest_backup} 恢复备份到 {target_path}')
                         break
                 else: