Made sequence indent consistent

Change-Id: I5ea4232ca4fd6e03d5b5f72eb6704bee84d04ea5

.yamllint

@@ -14,7 +14,9 @@ rules:
   empty-lines:
     max: 1
     max-end: 2
-  indentation: disable
+  indentation:
+    level: error
+    indent-sequences: consistent
   new-line-at-end-of-file: disable
   line-length: disable
   truthy: false

playbooks/tox/pre-molecule.yaml

@@ -1,6 +1,8 @@
 - hosts: all
   vars:
     tox_molecule_packages: "{{ _tox_molecule_packages | default([]) }}"
+  roles:
+    - role: ensure-docker
   tasks:
     - name: Gather variables for each operating system
       include_vars: "{{ item }}"
@@ -22,6 +24,3 @@
         name: "{{ tox_molecule_packages }}"
       when:
         - (tox_molecule_packages | length) > 0
-
-  roles:
-    - role: ensure-docker