Add a linter to the ansible playbook as workflow

[peterzhuamazon]

I am currently adding a new linter to the ansible: https://github.com/peterzhuamazon/ansible-playbook/blob/opensearch-ansible-linter/.github/workflows/lint.yml

I see a lot of warnings and errors being exposed: https://github.com/peterzhuamazon/ansible-playbook/runs/6335919476?check_suite_focus=true

I am wondering if this is worth adding as it probably will better serve our code.

@saravanan30erd @prudhvigodithi thoughts?

Thanks.

[saravanan30erd]

sure, it will be useful.