test-device-ping360 fails to turn off motor

I am testing the ping360 with [test-device-ping360.cpp](https://github.com/bluerobotics/ping-cpp/blob/master/test/test-device-ping360.cpp) and it keeps failing to turn off the motors, I got the following output:
```
Test Device initialization: SUCCESS
Test Device type: SUCCESS
Test Device ID: SUCCESS
Test Ping protocol version: SUCCESS
Firmware version: 3.3.8
Test Check 400 transducer messages: SUCCESS
Test Check 400 auto transducer messages: SUCCESS
Test Turn off motor: ERROR
terminate called after throwing an instance of 'std::runtime_error'
what(): Test failed: Turn off motor
Aborted (core dumped)
```

Any suggestions for fixing this?

从 test/test-device-ping360.cpp 开始，重现 Ping360 测试，重点关注 transducer 检查成功后的“关闭电机”步骤。跟踪该步骤使用的设备交互，并将其行为与报告的固件版本 3.3.8 进行比较。当关闭电机检查通过且没有运行时错误时，即表示完成。

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