Description of problem:
Currently when Apply Ansible Roles is executed on multiple machines and any of them is unreachable all subtasks will fail just because the unreachable one.

This behaviour is confusing as it fails also on hosts which apply ansible roles successfully.

Version-Release number of selected component (if applicable):
Satellite 6.12

How reproducible:
Always

Steps to Reproduce:
1. Have host a and b
2. Power Off host b
3. Run Ansible Roles on both a and b

Actual results:
Both sub-tasks are in Failed state even though it was executed on host a successfully.

Expected results:
Only sub-task of host b should fail because it is unreachable, sub-task on host a should be marked as successful.

Additional info: 
Job Template: Ansible Roles - Ansible Default

"""
---
- hosts: all
  ignore_unreachable: true                     <<<<< add this line
  pre_tasks:
    - name: Display all parameters known for the Foreman host
      debug:
        var: foreman
      tags:
        - always
  tasks:
    - name: Apply roles
      include_role:
        name: "{{ role }}"
      tags:
        - always
      loop: "{{ foreman_ansible_roles }}"
      loop_control:
        loop_var: role
"""