Upgrade test to use new ansible-lint version

Description

Now test uses bash script and old version of ansible-lint. New roles are implemented with newer Ci using pipline-worker in version 18.06.

Proposal

• Use pipeline-worker version 18.06 image in CI.
• Move test to new directory tests.
• Name yml file as test_lint-api.yml, which will contain all tasks (also internal) from role and pass it to CI.

Links / references

gitlab - example of marged role with that solution