docs: Leak Detection Worflow

[Seppun]

How would you describe the priority of this documentation request

High

Describe the future/missing documentation

NICo implements leak detection workflows through DSX Exchange integration but a user implementation has to configure the BMS/MQTT event source, DSX Exchange consumer, and NICo leak-detection workflow. This is not yet explicitly documented and should be added to the NICo documentation.

Code of Conduct

• I agree to follow NVIDIA Infra Controller's Code of Conduct
• I have searched the open documentation issues and have found no duplicates for this documentation issue

[deepak-poornachandra]

PR in review - #5480

cc: @zhaozhongn