message: Fix the copyright in the macos package
diff: "dmg" : {
  "applicationIcon": "$pruneStep_trashDirectory/main/resources/logo/extraterm_small_logo.icns",
  "applicationTitle": "ExtratermQt",
  - "nsHumanReadableCopyright": "Copyright 2022 Simon Edwards",
  + "nsHumanReadableCopyright": "Copyright 2023 Simon Edwards",
  "cfBundleIdentifier": "com.extraterm.extraterm",
  "prePack": [
  "mv $dmgStep_dmgResourcesDirectory/extratermqt $dmgStep_dmgMacOSDirectory/"
  