### 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
msg = "Argument '%s' in argument_spec" % arg
                    if context:
                        msg += " found in %s" % " -> ".join(context)
                    msg += " defines elements as %s but it is valid only when value of parameter type is list" % _elements
                    self.reporter.error(
                        path=self.object_path,
                        code='parameter-invalid-elements',
                        msg=msg
                    )
            arg_default = None
            if 'default' in data and not is_empty(data['default']):
                try:
                    with CaptureStd():
                        arg_default = _type_checker(data['default'])
                except (Exception, SystemExit):
                    msg = "Argument '%s' in argument_spec" % arg
                    if context:
                        msg += " found in %s" % " -> ".join(context)
                    msg += " defines default as (%r) but this is incompatible with parameter type %r" % (data['default'], _type)
                    self.reporter.error(
                        path=self.object_path,
                        code='incompatible-default-type',
                        msg=msg
                    )
                    continue
            doc_options_args = []
            for alias in sorted(set([arg] + list(aliases))):
                if alias in doc_options:
                    doc_options_args.append(alias)
            if len(doc_options_args) == 0: