ci: Use supported ansible-lint action; run ansible-lint against the c…

…ollection

The old ansible-community ansible-lint is deprecated.  There is a
new ansible-lint github action.

The latest Ansible repo gating tests run ansible-lint against
the collection format instead of against individual roles.
We have to convert the role to collection format before running
ansible-test.

Role developers can run this locally using
`tox -e collection,ansible-lint-collection`
See linux-system-roles/tox-lsr#125

Add `---` doc start to .markdownlint.yaml

Signed-off-by: Rich Megginson <rmeggins@redhat.com>

.github/workflows/ansible-lint.yml

@@ -56,4 +56,4 @@ jobs:
       - name: Run ansible-lint
         uses: ansible/ansible-lint@v6
         with:
-          path: .tox/ansible_collections/${{ env.LSR_ROLE2COLL_NAMESPACE }}/${{ env.LSR_ROLE2COLL_NAME }}
+          working_directory: .tox/ansible_collections/${{ env.LSR_ROLE2COLL_NAMESPACE }}/${{ env.LSR_ROLE2COLL_NAME }}