Include podman macOS installer inside Podman Desktop

[benoitf]

Is your enhancement related to a problem? Please describe

Like for the podman Windows installer (msi), podman macOS installer needs to be included if people have not yet installed Podman on their computer.

Describe the solution you'd like

include .pkg provided by https://github.com/containers/podman/pull/15105

Describe alternatives you've considered

No response

Additional context

No response