### 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=msg
                        )
                        raise StopIteration()
            except StopIteration:
                continue
            if not compare_unordered_lists(arg_choices, doc_choices):
                msg = "Argument '%s' in argument_spec" % arg
                if context:
                    msg += " found in %s" % " -> ".join(context)
                msg += " defines choices as (%r) but documentation defines choices as (%r)" % (arg_choices, doc_choices)
                self.reporter.error(
                    path=self.object_path,
                    code='doc-choices-do-not-match-spec',
                    msg=msg
                )
            doc_required = doc_options_arg.get('required', False)
            data_required = data.get('required', False)
            if (doc_required or data_required) and not (doc_required and data_required):
                msg = "Argument '%s' in argument_spec" % arg
                if context:
                    msg += " found in %s" % " -> ".join(context)
                if doc_required:
                    msg += " is not required, but is documented as being required"
                else:
                    msg += " is required, but is not documented as being required"
                self.reporter.error(
                    path=self.object_path,
                    code='doc-required-mismatch',
                    msg=msg
                )