Fix(cv_container_v3): check_mode error

[sugetha24]

Change Summary

Running cv_container_v3 with --check is throwing an error: TypeError: string indices must be integers

Related Issue(s)

Fixes #582

Component(s) name

arista.cvp.cv_container_v3

How to test

---
- name: cv_container_v3
  hosts: CloudVision
  connection: local
  gather_facts: no
  check_mode: True
  vars:
    CVP_CONTAINERS:
      Sugetha:
        parentContainerName: Tenant
      TestCreate:
        parentContainerName: Sugetha

  tasks:
    - name: "Configure containers on {{inventory_hostname}}"
      arista.cvp.cv_container_v3:
        topology: "{{CVP_CONTAINERS}}"
        state: present
        apply_mode: loose

Output:

changed: [CloudVision] => changed=true 
  configlets_attached:
    changed: false
    configlets_attached_count: 0
    configlets_attached_list: []
    diff: {}
    success: false
    taskIds: []
  configlets_detached:
    changed: false
    configlets_detached_count: 0
    configlets_detached_list: []
    diff: {}
    success: true
    taskIds: []
  container_added:
    changed: true
    container_added_count: 1
    container_added_list:
    - TestCreate
    diff: {}
    success: true
    taskIds: []
  container_deleted:
    changed: false
    container_deleted_count: 0
    container_deleted_list: []
    diff: {}
    success: false
    taskIds: []
  success: true
  taskIds: []

Checklist

Repository Checklist

• [x] My code has been rebased from devel before I start
• [x] I have read the CONTRIBUTING document.
• [x] My change requires a change to the documentation and documentation have been updated accordingly. (check the box if not applicable)
• [ ] I have updated molecule CI testing accordingly. (check the box if not applicable)