Certain extraFiles causes packager to hang

[mastergberry]

• Version: 13.5.0

• Target: NSIS (Windows x64)

If you try to include a file in "extraFiles" from the "build" directory such as license.txt the whole thing just kinda hangs and gets stuck forever.

e.g.

extraFiles: [
      {
        "from:": "build/license.txt",
        "to": "."
      }
]