Fix to resolve a broken master build

[jvanderhoof]

What does this PR do? Is there any background context you want to provide?

This PR:

• Fixes the broken build on the master branch
• Updates the Ansible version to one without a major security vulnerability (and insure we're testing with the modern version of Ansible)

What ticket does this PR close?

No ticket filed.

Where should the reviewer start? How should this functionality be validated?

The changes are simple. test/docker-compose.yml has the most change.

Tests are now passing: https://jenkins.conjur.net/job/cyberark--ansible-conjur-host-identity/job/cli-fix/, which resolves the primary issue.

Links to open issues for related documentation (in READMEs, docs, etc)

N/A

Links to open issues for related automated integration and unit tests

N/A

Have the Version and Changelog been updated?

N/A - there is no functional change.