improve NTP package conflict handling (#12212)

roles/kubernetes/preinstall/defaults/main.yml

...s/kubernetes/preinstall/tasks/0081-ntp-configurations.yml

roles/kubespray_defaults/defaults/main/main.yml

roles/system_packages/tasks/main.yml

roles/system_packages/vars/main.yml

scripts/assert-sorted-checksums.yml

tests/files/almalinux9-calico.yml

tests/files/debian12-cilium.yml

tests/files/ubuntu24-calico-etcd-datastore.yml