Include machine-tests in cirrus-cron jobs

[cevich]

Irrespective of reason/cause, a commit was merged into main that broke podman-machine, and went unnoticed for several days. Improve the situation by including podman-machine testing in the daily cirrus-cron builds. These are monitored by e-mail when Total Success reports a failure.

Also: Add a comment for Windows & Mac build tasks, documenting the reason they don't execute on RHEL release branches.

Does this PR introduce a user-facing change?

None

[cevich]

@mheon PTAL, this should do what you asked. It will take effect the next cirrus-cron run after this is is merged (FYI: @edsantiago @lsm5)

@baude If you think it would help, I/we could add a cirrus-cron run for machine-dev-5 similar to this. It would automatically inherit the e-mail monitoring aspect. LMK if interested.

[mheon]

LGTM
@baude PTAL and merge

[cevich]

Note-to-me: Manually check these tests actually run for the next cron iteration. No e-mail is sent if 'total success' is green - which might be the case here, since machine test status is currently ignored.

[mheon]

@cevich Can you rebase?

[cevich]

Force-push: Rebased as requested.

[packit-as-a-service]

Cockpit tests failed for commit 4274aceb191928585a1a44d675e6501613ed18a0. @martinpitt, @jelly, @mvollmer please check.

[mheon]

Might need another rebase? Hyperv fix might not have made it in

[cevich]

NP, there it goes.

[cevich]

@mheon PTAL this should be ready to go.

[mheon]

/approve

[openshift-ci]

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[mheon]

@rhatdan @Luap99 @baude @ashley-cui PTAL and merge

[baude]

/lgtm