### 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 += " found in %s" % " -> ".join(context)
                            msg += " has deprecated aliases '%s' with invalid removal version %r:" % (
                                deprecated_alias['name'], deprecated_alias['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,
                            )
            aliases = data.get('aliases', [])
            if arg in aliases:
                msg = "Argument '%s' in argument_spec" % arg
                if context:
                    msg += " found in %s" % " -> ".join(context)
                msg += " is specified as its own alias"
                self.reporter.error(
                    path=self.object_path,
                    code='parameter-alias-self',
                    msg=msg
                )
            if len(aliases) > len(set(aliases)):
                msg = "Argument '%s' in argument_spec" % arg
                if context:
                    msg += " found in %s" % " -> ".join(context)
                msg += " has at least one alias specified multiple times in aliases"
                self.reporter.error(
                    path=self.object_path,
                    code='parameter-alias-repeated',
                    msg=msg
                )