##### SUMMARY
When running `ansible-test sanity --venv --python 3.8 --test pylint plugins/` inside the `theforeman.foreman` collection (https://github.com/theforeman/foreman-ansible-modules), the test fails with

```
ERROR: plugins/module_utils/foreman_helper.py:13:0: syntax-error: Cannot import 'contextlib' due to syntax error 'invalid syntax (&lt;unknown&gt;, line 380)'
ERROR: plugins/module_utils/foreman_helper.py:15:0: syntax-error: Cannot import 'collections' due to syntax error 'invalid syntax (&lt;unknown&gt;, line 96)'
ERROR: plugins/module_utils/foreman_helper.py:16:0: syntax-error: Cannot import 'functools' due to syntax error 'invalid syntax (&lt;unknown&gt;, line 276)'
```

##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME
ansible-test

##### ANSIBLE VERSION
<!--- Paste verbatim output from "ansible --version" between quotes -->
```paste below
ansible 2.10.0.dev0
  config file = /etc/ansible/ansible.cfg
  configured module search path = ['/home/egolov/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /home/egolov/Devel/theforeman/foreman-ansible-modules/venv3/lib64/python3.7/site-packages/ansible
  executable location = /home/egolov/Devel/theforeman/foreman-ansible-modules/venv3/bin/ansible
  python version = 3.7.6 (default, Jan 30 2020, 09:44:41) [GCC 9.2.1 20190827 (Red Hat 9.2.1-1)]

```

##### CONFIGURATION
<!--- Paste verbatim output from "ansible-config dump --only-changed" between quotes -->
```paste below
<empty>
```

##### OS / ENVIRONMENT
<!--- Provide all relevant information below, e.g. target OS versions, network device firmware, etc. -->
Fedora 31

##### STEPS TO REPRODUCE
<!--- Describe exactly how to reproduce the problem, using a minimal test-case -->

<!--- Paste example playbooks or commands between quotes below -->
```yaml
ansible-test sanity --venv --python 3.8 --test pylint plugins/
```

<!--- HINT: You can paste gist.github.com links for larger files -->

##### EXPECTED RESULTS
<!--- Describe what you expected to happen when running the steps above -->
No errors / or at least valid sanity/pylint errors ;)

##### ACTUAL RESULTS
<!--- Describe what actually happened. If possible run with extra verbosity (-vvvv) -->

<!--- Paste verbatim command output between quotes -->
```
ERROR: plugins/module_utils/foreman_helper.py:13:0: syntax-error: Cannot import 'contextlib' due to syntax error 'invalid syntax (&lt;unknown&gt;, line 380)'
ERROR: plugins/module_utils/foreman_helper.py:15:0: syntax-error: Cannot import 'collections' due to syntax error 'invalid syntax (&lt;unknown&gt;, line 96)'
ERROR: plugins/module_utils/foreman_helper.py:16:0: syntax-error: Cannot import 'functools' due to syntax error 'invalid syntax (&lt;unknown&gt;, line 276)'
```

##### ADDITIONAL  INFO

I've traced the issue to `astroid-2.2.5` (a dependency of `pylint`), when using `astroid-2.3.3` everything works.

plugin_names,  
            python,  
            collection_detail,  
    ):  
        """Run pylint using the config specified by the context on the specified paths."""
        rcfile = os.path.join(SANITY_ROOT, 'pylint', 'config', context.split('/')[0] + '.cfg')
        if not os.path.exists(rcfile):
            if data_context().content.collection:
                rcfile = os.path.join(SANITY_ROOT, 'pylint', 'config', 'collection.cfg')
            else:
                rcfile = os.path.join(SANITY_ROOT, 'pylint', 'config', 'default.cfg')
        parser = ConfigParser()
        parser.read(rcfile)
        if parser.has_section('ansible-test'):
            config = dict(parser.items('ansible-test'))
        else:
            config = dict()
        disable_plugins = set(i.strip() for i in config.get('disable-plugins', '').split(',') if i)
        load_plugins = set(plugin_names + ['pylint.extensions.mccabe']) - disable_plugins
        cmd = [
            python,
            '-m', 'pylint',
            '--jobs', '0',
            '--reports', 'n',
            '--max-line-length', '160',
            '--max-complexity', '20',
            '--rcfile', rcfile,
            '--output-format', 'json',
            '--load-plugins', ','.join(load_plugins),
        ] + paths