### 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
"""Base class for test results."""
    def __init__(self, command, test, python_version=None):  
        self.command = command
        self.test = test
        self.python_version = python_version
        self.name = self.test or self.command
        if self.python_version:
            self.name += '-python-%s' % self.python_version
    def write(self, args):  
        """Write the test results to various locations."""
        self.write_console()
        self.write_bot(args)
        if args.lint:
            self.write_lint()
        if args.junit:
            self.write_junit(args)
    def write_console(self):  
        """Write results to console."""
    def write_lint(self):