release-20.4:Backport!5748 Ansible fix changed_when

Fix ansible changed_when

See merge request !5748 (merged)

(cherry picked from commit 0671f995)

668cf2e2 Update ansible/system_roles/consul/tasks/main.yml 84188716 Update ansible/system_roles/consul/tasks/main.yml 115723a0 Update ansible/system_roles/mongod/tasks/main.yml c4710d07 Fix change_when error in ansible 2.9.14+