[nsys plugin] How about add an option `name` to nsys dumped file

[davidmlw]

Description

Currently the nsys file is worker_process_<PID>.nsys-rep, but it is difficult to check which file is related to the interested actors. How about change to worker_process_<NAME>_<PID>.nsys-rep.

with the <NAME> is a config option in

runtime_env={ "nsight": {
    "t": "cuda,cudnn,cublas",
    "cuda-memory-usage": "true",
    "cuda-graph-trace": "graph",
    "name": "what_ever_user_named"
}})

Use case

No response