update the macOS up to date query, get actionable output

[atomic111]

the new mql provides you a better output which update is missing:

cnspec> parse.plist('/Library/Preferences/com.apple.SoftwareUpdate.plist').params['RecommendedUpdates'] == empty
[failed] parse.plist.params.RecommendedUpdates == <ref>
  expected: == _
  actual:   [
    0: {
      Display Name: "macOS Sonoma 14.3.1"
      Display Version: "14.3.1"
      Identifier: "MSU_UPDATE_23D60_patch_14.3.1_minor"
      MobileSoftwareUpdate: true
      Product Key: "MSU_UPDATE_23D60_patch_14.3.1_minor"
    }
  ]

Instead of this output:

cnspec> command("softwareupdate -l").stderr.contains("No new software available.")
[failed] command.stderr.contains
  expected: == true
  actual:   false

[mm-weber]

LGTM