[v0.19.x] Pin to ansible 2.9 (#3943)

Restrict ansible to < 2.10

Molecule was unable to import something

File "/home/travis/.local/lib/python3.6/site-packages/molecule/driver/docker.py", line 222, in sanity_checks
   from ansible.module_utils.docker.common import HAS_DOCKER_PY
ModuleNotFoundError: No module named 'ansible.module_utils.docker'

Co-authored-by: Austin Macdonald <austin@redhat.com>

.travis.yml

@@ -122,7 +122,7 @@ jobs:
       name: Ansible on Kubernetes
       before_script:
         - pip3 install --upgrade setuptools pip
-        - pip install --user ansible
+        - pip install --user ansible~=2.9.13
       script:
         - make test-e2e-ansible
         - make test-e2e-ansible-molecule