### 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
'value': None,
                'lineno': 0,
                'end_lineno': 0,
            },
        }
        for child in self.ast.body:
            if isinstance(child, ast.Assign):
                for grandchild in child.targets:
                    if not isinstance(grandchild, ast.Name):
                        continue
                    if grandchild.id == 'DOCUMENTATION':
                        docs['DOCUMENTATION']['value'] = child.value.s
                        docs['DOCUMENTATION']['lineno'] = child.lineno
                        docs['DOCUMENTATION']['end_lineno'] = (
                            child.lineno + len(child.value.s.splitlines())
                        )
                    elif grandchild.id == 'EXAMPLES':
                        docs['EXAMPLES']['value'] = child.value.s
                        docs['EXAMPLES']['lineno'] = child.lineno
                        docs['EXAMPLES']['end_lineno'] = (
                            child.lineno + len(child.value.s.splitlines())
                        )
                    elif grandchild.id == 'RETURN':
                        docs['RETURN']['value'] = child.value.s
                        docs['RETURN']['lineno'] = child.lineno
                        docs['RETURN']['end_lineno'] = (
                            child.lineno + len(child.value.s.splitlines())
                        )
        return docs
    def _validate_docs_schema(self, doc, schema, name, error_code):