##### 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.
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
import os
import re
from ast import literal_eval
from jinja2 import Template
from string import ascii_letters, digits
from ansible.module_utils._text import to_text
from ansible.module_utils.common.collections import Sequence
from ansible.module_utils.parsing.convert_bool import boolean, BOOLEANS_TRUE
from ansible.module_utils.six import string_types
from ansible.config.manager import ConfigManager, ensure_type, get_ini_config_value
def _warning(msg):
    ''' display is not guaranteed here, nor it being the full class, but try anyways, fallback to sys.stderr.write '''
    try:
        from ansible.utils.display import Display
        Display().warning(msg)
    except Exception:
        import sys
        sys.stderr.write(' [WARNING] %s\n' % (msg))
def _deprecated(msg, version='2.8'):
    ''' display is not guaranteed here, nor it being the full class, but try anyways, fallback to sys.stderr.write '''
    try:
        from ansible.utils.display import Display
        Display().deprecated(msg, version=version)
    except Exception:
        import sys
        sys.stderr.write(' [DEPRECATED] %s, to be removed in %s\n' % (msg, version))
def mk_boolean(value):