[ERROR] macOS: Package has no install method: qt5

[k-bx]

Continuation of #555 but macOS-specific for now.

$ pybombs prefix init ~/tmp/gnuradio -R gnuradio-default
[INFO] Prefix Python version is: 3.9.13
[INFO] PyBOMBS Version 2.3.5
[WARNING] There already is a prefix in `/Users/kb/tmp/gnuradio'.
Continue using this path Y/[N]? Y
[INFO] Prefix Python version is: 3.9.13
[INFO] Prefix Python version is: 3.9.13
[INFO] Installing default packages for prefix...
[INFO]
  - gnuradio
[INFO] Phase 1: Creating install tree and installing binary packages:
[ERROR] Package has no install method: qt5