### 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
doc_info = self._get_docs()
        doc = None
        documentation_exists = False
        examples_exist = False
        returns_exist = False
        
        
        filename_deprecated_or_removed = False
        deprecated = False
        removed = False
        doc_deprecated = None  
        routing_says_deprecated = False
        if self.object_name.startswith('_') and not os.path.islink(self.object_path):
            filename_deprecated_or_removed = True
        
        if self.routing:
            routing_deprecation = self.routing.get('plugin_routing', {}).get('modules', {}).get(self.name, {}).get('deprecation', {})
            if routing_deprecation:
                
                routing_says_deprecated = True
                deprecated = True
        if not removed:
            if not bool(doc_info['DOCUMENTATION']['value']):
                self.reporter.error(