Fix role detection to include tasks/main.yml
Fix role detection to include tasks/main.yml

Previous role detection logic was looking only for tasks/main.yaml to
determine what looks to be a role. Now it also includes tasks/main.yml

Signed-off-by: Sorin Sbarnea <8938dff14221394d430a023580a32caf3bfb26a9@redhat.com>

willthames/ansible-lint