tests/kola: a few updates for the upgrade test

[dustymabe]

commit 56c038edab6e856dd8fa2aae0519396991114b6d
Author: Dusty Mabe <dusty@dustymabe.com>
Date:   Tue Mar 28 21:48:46 2023 -0400

    tests/kola: support injecting target stream for extended upgrade test
    
    This will allow someone to inject (via --append-butane) an
    /etc/target_stream file into the node used for the upgrade test.
    
    ```
    $ cat stream.bu
    variant: fcos
    version: 1.4.0
    storage:
      files:
        - path: /etc/target_stream
          mode: 0644
          contents:
            inline: |
              rawhide
    $ cosa kola run --tag extended-upgrade --build=37.20230303.1.1 --append-butane=stream.bu
    ```

commit cda732602e37c7fc8a576f3038bba250b4204c91
Author: Dusty Mabe <dusty@dustymabe.com>
Date:   Fri Mar 24 23:56:00 2023 -0400

    tests/kola: only print bootupctl info if exists in upgrade test
    
    This won't exist on ppc64le and s390x. Let's avoice the failure
    there.

commit 7a651d63f26346b4be06aa46c681fabf43f564cf
Author: Dusty Mabe <dusty@dustymabe.com>
Date:   Fri Mar 24 23:54:56 2023 -0400

    tests/kola: update info about starting versions for upgrade test
    
    We can't really perform the test for <F31 because of a bootloader
    incompatibility. See https://github.com/coreos/fedora-coreos-tracker/issues/1448