add loki role and fix linter errors

roles/loki/molecule/default/molecule.yml

@@ -0,0 +1,22 @@
+---
+dependency:
+  name: galaxy
+driver:
+  name: docker
+platforms:
+  - name: ubuntu
+    image: geerlingguy/docker-ubuntu2204-ansible:latest
+    pre_build_image: true
+    command: ${MOLECULE_DOCKER_COMMAND:-""}
+    volumes:
+      - /sys/fs/cgroup:/sys/fs/cgroup:rw
+    cgroupns_mode: host
+    privileged: true
+provisioner:
+  name: ansible
+verifier:
+  name: ansible
+lint: |
+  set -e
+  yamllint .
+  ansible-lint .