YAML: Darwin issues w/ configurable argument on DelayCommand

[jmeg-sfy]

Problem

YAML test Compilation error w/ darwin when arguments are used for configuring WaitForMS for example

`config:
nodeId: 0x12344321
cluster: "Window Covering"
endpoint: 1
fastMotionDuration:
type: INT16U
defaultValue: 3000

  cluster: "DelayCommands"
  command: "WaitForMs"
  arguments:
      values:
          - name: "ms"
            value: fastMotionDuration

`

--> give Error below on Darwin only (it is working fine on Linux)
/Users/runner/work/connectedhomeip/connectedhomeip/src/darwin/Framework/CHIPTests/CHIPClustersTests.m:27523:35: error: use of undeclared identifier 'fastMotionDuration'
WaitForMs(expectation, queue, fastMotionDuration);