### 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
msg += " has a deprecated removed_in_version %r," % removed_in_version
                        msg += " i.e. the version is less than or equal to the current version of %s" % version_of_what
                        self.reporter.error(
                            path=self.object_path,
                            code=code_prefix + '-deprecated-version',
                            msg=msg,
                        )
                except ValueError as e:
                    msg = "Argument '%s' in argument_spec" % arg
                    if context:
                        msg += " found in %s" % " -> ".join(context)
                    msg += " has an invalid removed_in_version number %r: %s" % (removed_in_version, e)
                    self.reporter.error(
                        path=self.object_path,
                        code='invalid-deprecated-version',
                        msg=msg,
                    )
                except TypeError:
                    msg = "Argument '%s' in argument_spec" % arg
                    if context:
                        msg += " found in %s" % " -> ".join(context)
                    msg += " has an invalid removed_in_version number %r: " % (removed_in_version, )
                    msg += " error while comparing to version of %s" % version_of_what
                    self.reporter.error(
                        path=self.object_path,
                        code='invalid-deprecated-version',
                        msg=msg,
                    )
            if deprecated_aliases is not None:
                for deprecated_alias in deprecated_aliases: