valdiations CLI role reports issues with 'rc' variable contents

[Jiri Podivin]

The task is passing, but we need to get hold of this anyway. Having potentially broken syntax in our CI isn't good for anybody.

Trace:
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2022-12-01 06:32:49.519488 | primary | TASK [validations : set fact for run_results] **********************************
2022-12-01 06:32:49.519508 | primary | Thursday 01 December 2022 06:32:49 -0500 (0:00:00.045) 1:45:54.641 *****
2022-12-01 06:32:49.544295 | primary | fatal: [undercloud]: FAILED! => {"msg": "The conditional check 'run_results.rc != expected_rc' failed. The error was: error while evaluating conditional (run_results.rc != expected_rc): 'dict object' has no attribute 'rc'\n\nThe error appears to be in '/usr/share/ansible/roles/validations/tasks/run.yaml': line 26, column 7, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n\n - name: set fact for run_results\n ^ here\n"}