Set allocatable replicas for unhealthy cluster to zero when scale up.#6863

LivingCcj wants to merge 3 commits intokarmada-io:masterkarmada-io/karmada:masterfrom

LivingCcj:remove_unhealthy_cluster_when_division_replicasLivingCcj/karmada:remove_unhealthy_cluster_when_division_replicasCopy head branch name to clipboard