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

Consistent boolean values in ansible playbooks

roles/etcd/handlers/backup.yml

@@ -23,9 +23,9 @@
 - name: Stat etcd v2 data directory
   stat:
     path: "{{ etcd_data_dir }}/member"
-    get_attributes: no
-    get_checksum: no
-    get_mime: no
+    get_attributes: false
+    get_checksum: false
+    get_mime: false
   register: etcd_data_dir_member
   listen: Restart etcd
   when: etcd_cluster_is_healthy.rc == 0