[BUG] 2.7.3 分支中的 DeviceMapper.update SQL 缺少空格，在库中存在在线设备时启动会失败

Environmental information:

• 1. Deployment method: wvp-pro Docker (git clone in Dockerfile and checkout 2.7.3 for self-compilation)
• 1. Deployment environment: ubuntu (Docker)
• 1. Port opening status: 3000/5060 (tcp+udp), host network
• 1. Whether it is a public network deployment: Yes
• 1. Whether to use https: No
• 1. Access device/platform brand: GB28181 camera
• 1. What attempts have you made: The SQL rendering result has been located and confirmed that the problem has been fixed in master
• 1. Code update time: 2.7.3 branch b1ff1ef (2025-05-26)
• 1. Whether 4G devices are accessed: No