<!--- Verify first that your feature was not already discussed on GitHub -->
<!--- Complete *all* sections as described, this form is processed automatically -->

##### SUMMARY
<!--- Describe the new feature/improvement briefly below -->
In gitlab_hook module doesn't have parameter "Comment" which is necessary for my DevOps flow and generally very useful for triggering a job. Without this option, I and a lot of people cannot use this module fully. 

##### ISSUE TYPE
- Feature Idea

##### COMPONENT NAME
<!--- Write the short name of the module, plugin, task or feature below, use your best guess if unsure -->
https://docs.ansible.com/ansible/latest/modules/gitlab_hook_module.html

##### ADDITIONAL INFORMATION
<!--- Describe how the feature would be used, why it is needed and what it would solve -->
1. I use the newest version of ansible.
2. It's about this option in gitlab:
[![comments.png](https://i.postimg.cc/C5tkJdJ7/comments.png)](https://postimg.cc/sGYMgjkG)
<!--- Paste example playbooks or commands between quotes below -->
```yaml

```

<!--- HINT: You can also paste gist.github.com links for larger files -->

required: true
    default: present
    type: str
    choices: [ "present", "absent" ]
  push_events:
    description:
      - Trigger hook on push events
    type: bool
    default: yes
  issues_events:
    description:
      - Trigger hook on issues events
    type: bool
    default: no
  merge_requests_events:
    description:
      - Trigger hook on merge requests events
    type: bool
    default: no
  tag_push_events:
    description:
      - Trigger hook on tag push events
    type: bool
    default: no
  note_events:
    description:
      - Trigger hook on note events
    type: bool
    default: no
  job_events: