##### SUMMARY

In the Kubernetes collection's CI tests, the sanity check, which uses `ansible-test sanity --docker -v --color --python 3.6`, started failing with the following error:

```
ERROR: Command "importer.py" returned exit status 1.
>>> Standard Error
Traceback (most recent call last):
  File "/root/ansible/ansible_collections/community/kubernetes/tests/output/.tmp/sanity/import/minimal-py36/bin/importer.py", line 447, in <module>
    main()
  File "/root/ansible/ansible_collections/community/kubernetes/tests/output/.tmp/sanity/import/minimal-py36/bin/importer.py", line 51, in main
    from ansible.utils.collection_loader import AnsibleCollectionLoader
  File "/root/ansible/lib/ansible/utils/collection_loader.py", line 15, in <module>
    from ansible import constants as C
  File "/root/ansible/lib/ansible/constants.py", line 12, in <module>
    from jinja2 import Template
ModuleNotFoundError: No module named 'jinja2'
```

Nothing in the collection has changed in the past week, and no runs failed until this morning's CI run, so it seems something committed to ansible/ansible `devel` has caused this failure.

##### ISSUE TYPE

- Bug Report

##### COMPONENT NAME

ansible-test

##### ANSIBLE VERSION

devel (as of this morning)

##### CONFIGURATION

N/A - defaults

##### OS / ENVIRONMENT

Linux

##### STEPS TO REPRODUCE

  1. Clone kubernetes collection repo
  2. Install Ansible @ devel
  3. Run `ansible-test sanity --docker -v --color --python 3.6`

##### EXPECTED RESULTS

Tests should pass, as they have for the past few weeks.

##### ACTUAL RESULTS

Test fail, with the message in this issue's summary.
for p in paths
        ]
        
        for path in sys.path:
            if (
                    path not in paths and
                    os.path.isdir(to_bytes(
                        os.path.join(path, 'ansible_collections'),
                        errors='surrogate_or_strict',
                    ))
            ):
                paths.append(path)
        self._n_configured_paths = paths
        self._n_playbook_paths = []
        self._default_collection = None
        
        for syn_pkg_def in (p for p in iteritems(_SYNTHETIC_PACKAGES) if p[1].get('graft')):
            pkg_name = syn_pkg_def[0]
            pkg_def = syn_pkg_def[1]
            newmod = ModuleType(pkg_name)
            newmod.__package__ = pkg_name
            newmod.__file__ = '<ansible_synthetic_collection_package>'
            pkg_type = pkg_def.get('type')
            
            if pkg_type == 'flatmap':
                newmod.__loader__ = AnsibleFlatMapLoader(import_module(pkg_def['flatmap']))
            newmod.__path__ = []
            sys.modules[pkg_name] = newmod
    @property
    def n_collection_paths(self):