### 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
if self.object_name in self.PS_DOC_REJECTLIST:
            return
        py_path = self.path.replace('.ps1', '.py')
        if not os.path.isfile(py_path):
            self.reporter.error(
                path=self.object_path,
                code='missing-python-doc',
                msg='Missing python documentation file'
            )
        return py_path
    def _get_docs(self):
        docs = {
            'DOCUMENTATION': {
                'value': None,
                'lineno': 0,
                'end_lineno': 0,
            },
            'EXAMPLES': {
                'value': None,
                'lineno': 0,
                'end_lineno': 0,
            },
            'RETURN': {