update serial no of sensorring d435 of cob4-7

[HannesBachter]

head of cob4-25 was put on cob4-7 - so serial number of d435 has changed ref https://github.com/mojin-robotics/cob4/issues/1230

[fmessmer]

this is a rebase of what is running on the real robot...real robot's workspace has not been updated...