### 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
path=self.object_path,
                        code='option-incorrect-version-added',
                        msg=('version_added for existing option (%s) should '
                             'be %r. Currently %r' %
                             (option, existing_version, current_version))
                    )
                continue
            try:
                collection_name = details.get('version_added_collection')
                version_added = self._create_strict_version(
                    str(details.get('version_added', '0.0')),
                    collection_name=collection_name)
            except ValueError as e:
                
                continue
            if collection_name != self.collection_name:
                continue
            if (strict_ansible_version != mod_version_added and
                    (version_added < strict_ansible_version or
                     strict_ansible_version < version_added)):
                self.reporter.error(
                    path=self.object_path,
                    code='option-incorrect-version-added',
                    msg=('version_added for new option (%s) should '
                         'be %r. Currently %r' %
                         (option, should_be, version_added))
                )
        return existing_doc
    @staticmethod
    def is_on_rejectlist(path):