### Summary

when running ansible-test over a collection, if there are errors or failures, it will link you to the correct documentation to help resolve the issue. this functionality is currently broken as it is linking to `docs.ansible.com/ansible/` instead of `docs.ansible.com/ansible-core/` which leads to 404s. 


### Issue Type

Bug Report

### Component Name

ansible-test

### Ansible Version

```console
$ ansible --version
ansible [core 2.11.2]
```


### Configuration

```console
$ ansible-config dump --only-changed
```


### OS / Environment

Fedora 34

### Steps to Reproduce

<!--- Paste example playbooks or commands between quotes below -->
```yaml (paste below)
ansible-test sanity --docker
```


### Expected Results

Expect for docs link to correct navigate to the correct documentation. 

### Actual Results

```console
leads to documentation that 404s. Ex: https://docs.ansible.com/ansible/2.12/dev_guide/testing/sanity/pylint.html
```


### Code of Conduct

- [X] I agree to follow the Ansible Code of Conduct
Required('removal_version'): any_value,
                'warning_text': any_value,
            },
            {
                Required('removal_date'): any_value,
                'warning_text': any_value,
            }
        ),
        extra=PREVENT_EXTRA
    )
    deprecation_schema = All(
        
        Schema(
            {
                'removal_version': partial(removal_version, is_ansible=is_ansible,
                                           current_version=current_version),
                'removal_date': partial(isodate, check_deprecation_date=check_deprecation_dates),
                'warning_text': Any(*string_types),
            }
        ),
        avoid_additional_data
    )
    tombstoning_schema = All(
        
        Schema(
            {
                'removal_version': partial(removal_version, is_ansible=is_ansible,
                                           current_version=current_version, is_tombstone=True),
                'removal_date': partial(isodate, is_tombstone=True),
                'warning_text': Any(*string_types),