ci: ansible-lint requires dependencies to be installed [citest_skip]

ansible-lint requires the dependencies in meta/collection-requirements.yml
and tests/collection-requirements.yml to be installed.  tox-lsr 3.18.1
will ensure they are installed.

Refactor the tests somewhat so that the collection and test steps are separate.

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

.github/workflows/ansible-managed-var-comment.yml

@@ -33,7 +33,7 @@ jobs:
       - name: Install tox, tox-lsr
         run: |
           set -euxo pipefail
-          pip3 install "git+https://github.com/linux-system-roles/tox-lsr@3.18.0"
+          pip3 install "git+https://github.com/linux-system-roles/tox-lsr@3.18.1"
 
       - name: Run ansible-plugin-scan
         run: |