### 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
errors=[
                                junit_xml.TestError(
                                    message=message,
                                ),
                            ],
                        ),
                    ],
                )
            ],
        )
        report = suites.to_pretty_xml()
        write_text_test_results(ResultType.JUNIT, self.create_result_name('.xml'), report)
class TestSuccess(TestResult):
    """Test success."""
    def write_junit(self, args):  
        """Write results to a junit XML file."""
        test_case = junit_xml.TestCase(classname=self.command, name=self.name)
        self.save_junit(args, test_case)
class TestSkipped(TestResult):
    """Test skipped."""
    def __init__(self, command, test, python_version=None):  
        super().__init__(command, test, python_version)
        self.reason = None  
    def write_console(self):  
        """Write results to console."""
        if self.reason:
            display.warning(self.reason)
        else:
            display.info('No tests applicable.', verbosity=1)
    def write_junit(self, args):