Fix magpie profiler flags

[kyle-hoffmeyer]

The profiler flag and profiler_dir need to be set but are currently not required in the skill file, causing the profiling to fail before the agent corrects itself.

From vllm/config/profiler.py that TraceLens patches:

if self.profiler == "torch" and not profiler_dir:
      raise ValueError("torch_profiler_dir must be set when profiler is 'torch'")

and

if capture_dir and self.profiler != "torch":
    raise ValueError(
        "capture_torch_profiler_dir is only applicable when profiler is set to 'torch'"
    )

Now the flags are correctly passed into EXTRA_VLLM_ARGS.

Additionally, previously the patches ignored whatever profiler-config.capture_torch_profiler_dir was set to and always set it to torch_profiler_dir + "/capture_traces". Now, profiler-config.capture_torch_profiler_dir properly sets the capture trace directory