Do not use ‘yes/no’ for boolean values (#11472)

Consistent boolean values in ansible playbooks

roles/container-engine/docker/tasks/main.yml

@@ -2,9 +2,9 @@
 - name: Check if fedora coreos
   stat:
     path: /run/ostree-booted
-    get_attributes: no
-    get_checksum: no
-    get_mime: no
+    get_attributes: false
+    get_checksum: false
+    get_mime: false
   register: ostree
 
 - name: Set is_ostree
@@ -66,7 +66,7 @@
     path: /etc/apt/sources.list
     regexp: 'buster-backports'
     state: absent
-    backup: yes
+    backup: true
   when:
     - ansible_os_family == 'Debian'
     - ansible_distribution_release == "buster"
@@ -183,7 +183,7 @@
 - name: Ensure docker service is started and enabled
   service:
     name: "{{ item }}"
-    enabled: yes
+    enabled: true
     state: started
   with_items:
     - docker