Better error message when podman probe fails

[marcsello]

This error message left me scratching my head for a while. My intention with this contribution is to help others not who ran into this, figure out the issue quicker.

In my exact situation, I had wrong permissions on the folder in my CWD, and attempted to execute podman compose pull. The console output was just this:

$ podman compose pull

CRITICAL:podman_compose:it seems that you do not have `podman` installed
Error: executing /usr/bin/podman-compose pull: exit status 1

Which is clearly wrong, as this command was invoked by podman itself.

Looking at the code, I realized that the issue is that any error during running podman version results in this error message. Even if podman version itself returns an error (which it does).

With this PR the error message becomes this, which is a little more helpful:

$ podman compose --version

ERROR:podman_compose:failed to check if podman is installed: Command 'podman --version ' returned non-zero exit status 1.: cannot chdir to /tmp/tmp.5R1DFMq5vG/asdasdasd: Permission denied

CRITICAL:podman_compose:It seems that you either do not have `podman` installed or the `podman version` command failed.
Error: executing /usr/bin/podman-compose --version: exit status 1

I don't think this change is something that can be unit-tested well, but if you disagree let me know!

It also seems like someone else ran into this issue as well: containers/podman#28004

Fixes: #220 (kindof)