##### 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.
ns_path_add = ns.rsplit('.', 1)[-1]
        return os.path.join(path, ns_path_add)
    def get_data(self, filename):
        with open(filename, 'rb') as fd:
            return fd.read()
class AnsibleFlatMapLoader(object):
    _extension_blacklist = ['.pyc', '.pyo']
    def __init__(self, root_package):
        self._root_package = root_package
        self._dirtree = None
    def _init_dirtree(self):
        
        root_path = os.path.dirname(self._root_package.__file__)
        flat_files = []
        
        
        
        for root, dirs, files in os.walk(root_path):
            
            flat_files.extend(((root, f) for f in files if not any((f.endswith(ext) for ext in self._extension_blacklist))))
        
        
        
        #
        
        
        
        flat_files.sort(key=lambda p: p[0].endswith('/windows'))
        self._dirtree = flat_files
    def find_file(self, filename):