disable broken build-macos-package job in build-test-release-client-packages workflow

[boegel]

This job is currently broken due to a silly issue (probably because we pick up an Ansible version that is too recent?

> Run ansible-playbook --connection=local ./prepare-client-packages.yml
  ansible-playbook --connection=local ./prepare-client-packages.yml
  shell: /bin/bash -e {0}
/Users/runner/work/_temp/0902b464-74fc-42e5-a721-b4a369a30dd5.sh: line 1: ansible-playbook: command not found
Error: Process completed with exit code 127.

Similar to #121, let's disable this for now, it shouldn't block making progress...