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

extra_playbooks/upgrade-only-k8s.yml

playbooks/ansible_version.yml

playbooks/boilerplate.yml

playbooks/cluster.yml

playbooks/facts.yml

playbooks/install_etcd.yml

playbooks/remove_node.yml

playbooks/reset.yml

playbooks/scale.yml

playbooks/upgrade_cluster.yml

roles/adduser/defaults/main.yml

roles/adduser/vars/coreos.yml

roles/adduser/vars/debian.yml

roles/adduser/vars/redhat.yml

roles/bootstrap-os/molecule/default/converge.yml

roles/bootstrap-os/tasks/amzn.yml

roles/bootstrap-os/tasks/centos.yml

roles/bootstrap-os/tasks/fedora-coreos.yml

roles/bootstrap-os/tasks/main.yml

roles/bootstrap-os/tasks/opensuse.yml