The conditional check ''negative_results' in name.value ' failed during set_fact

periodic-tripleo-ci-centos-9-containers-multinode-tripleo-wallaby-validation[1] job is consistently failing at following steps[2] in component pipeline
```
TASK [validations : set fact for run_results] **********************************
2022-06-01 17:29:44.261943 | primary | Wednesday 01 June 2022 17:29:44 -0400 (0:00:05.109) 0:53:58.484 ********
2022-06-01 17:29:44.285070 | primary | skipping: [undercloud]
2022-06-01 17:29:44.302098 | primary |
2022-06-01 17:29:44.302131 | primary | TASK [validations : Set fact for extra args.] **********************************
2022-06-01 17:29:44.302161 | primary | Wednesday 01 June 2022 17:29:44 -0400 (0:00:00.040) 0:53:58.524 ********
2022-06-01 17:29:44.330016 | primary | fatal: [undercloud]: FAILED! => {"msg": "The conditional check ''negative_results' in name.value ' failed. The error was: Unexpected templating type error occurred on ({% if 'negative_results' in name.value %} True {% else %} False {% endif %}): argument of type 'NoneType' is not iterable\n\nThe error appears to be in '/usr/share/ansible/roles/validations/tasks/run.yaml': line 4, column 7, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n block:\n - name: Set fact for extra args.\n ^ here\n"}
2022-06-01 17:29:44.331568 | primary |
```
It is failing at this step: https://opendev.org/openstack/validations-common/src/branch/master/roles/validations/tasks/run.yaml#L4

Based on this https://opendev.org/openstack/validations-common/commits/branch/master there is suspecious merged in the triple-validations repo.

Filing this bug to track the issue.

Links:

[1]. https://review.rdoproject.org/zuul/builds?job_name=periodic-tripleo-ci-centos-9-containers-multinode-tripleo-wallaby-validation

[2]. https://logserver.rdoproject.org/openstack-component-tripleo/opendev.org/openstack/tripleo-ci/master/periodic-tripleo-ci-centos-9-containers-multinode-tripleo-wallaby-validation/1e58cc7/job-output.txt